If there are Rusian people, they'll probably give more examples. I just wanted to write here something similar that i've found between Turkish and Russian languages..
For example a Turkish word 'durak' is 'fool' in Russian! (every Russian laughs whenthey hear that)
Tur 'kulak' is Rus 'fist'
kabak-->bar, (squash would be kabaçok!!!
kanat--> thick rope
karpuz sounds like karapuz which is a "little kid, baby"
and such words as 'özüm' is 'izüm' in Russian
pilav-->plov

these are just the few i could think of right now. if anybody else knows words that sound like words in another language, please share!

If the Russians laugh hearing "durak" in the sense of "a stop" not "a fool" then think what a Polish person's reaction is to hear the word "kupa" only to realise that it means "a cup" not "poo" as it does in Polish. Also, a quite common Turkish name - Burak in Polish means "beetroot" but its slang use is "a hillbilly"

Thank you for sharing! Since I'm a linguist i'm very interested in the etymology of languages, and their integration with one another. Are there other linguists here? Would love to know you!

I am a linguist in a way. I did my MA thesis in English semantics at university but I have always been more interested in phonetics and grammar than semantics. Still, if you need any help with your research, I'll gladly do it.

i believe erdinç has made a list of some similer words between Türkçe and Arapçe,i don't know if he made with other languages too or not ,look it up,you will find the Forum here some where

Oh my God, thanks erdinç! I never knew tere were so many, so what do they mean? are they borrowings?
btw, another funny couple of words -
tabak - (Ru) tabacco
bardak - 'a mess'

eh?

also saray in russian means a small house, used for houshold purposes, like garage, maybe it was borrowed from turkish in a wrong way

I have read in a paper that also "tamam" is used in Russian.

I have also read that some famous Russian names like "Rahmaninov" and "Yeltsin" are traced back to Turkish roots.

I see many Rusian people on our site and wanted to help little bit (I hope).

There are many words we use in Russian and Turkish.

Letter "A"

Abajur - абажур (abajur) - lampshade
Afganistan - Афганистан (Afganistan)
afiş - афиша (afisha) - poster
Afrika - Африка (Afrika)
ajur - ажур (ajur) - delicate, lace
akademik - академик (akademik) - academic
akordeon - акордеон (akordeon) - accordion
akort - аккорд (akkord) - tune
akrobat - акробат (akrobat) - acrobat
akrobatik - акробатика (akrobatika) - acrobatics
akropol - акрополь (akropol') - acropolis
aksesuar - аксессуар (aksesuar) - accessory
aksiyom - аксиома (aksioma) - axiom
aksiyoner - акционер (aktsioner) - shareholder
aktif - активный (aktivniy) - active
aktör - актёр (aktyor) - actor
aktris -актриса (aktrisa) - actress
aktüel - актуальный (aktual'niy) - current
akustik - акустика (akustika) - acustic(s)
akvariyum - аквариум ( akvariyum) - aquarium
albüm - альбом (al'bom) - album
alerji - аллергия (allergiya) - allergy
alkol - алкоголь (alkogol') - alcohol
alkolik - алкоголик (alkogolik) - alcoholic
alkolizm - алкоголизм (alkogolizm) - alcoholizm
Allah - Аллах (Allakh)
alo! - алло (allo) - hello (on the phone)
alüminyum - алюминий ( alyuminiy) - aluminium
ambar - амбар (ambar) - granary
Amerika - Америка (Amerika)
amfiteatr - амфитеатр (amfiteatr) - amphiteatre
amin - аминь (amin') - amen
amiral - адмирал ( admiral) - admiral
amper - ампер (amper) - ampere
ampermetre - амперметр (ampermetr) - ammeter
analiz - анализ (analiz) - analysis
ananas - ананас (ananas) - pineapple
anarşist - анархист (anarkhist) - anarchist
anarşizm - анархизм (anarkhizm) - anarchism
anatomi - анатомия (anatomiya) - anatomy
anekdot - анекдот (anekdot) - anecdote
anestezi - анестезия (anesteziya) - anesthesia
anket - анкета (anketa) - public survey, questionary
anonim - анонимный (anonimniy) - anonymous
antarktik - Антарктика (Antarktika)
anten - антена (antena) - antenna
antibiyotik - антибиотик (antibiotik) - antibiotic
antifiriz - антифриз (antifriz) - antifreeze
antipati - антипатия (antipatiya) - antipathy
antiseptik - антисептический (antisepticheskiy)-antiseptic
antoloji - антология (antologiya) - anthology
antrakt - антракт (antrakt) - intermission
antropoloji - антропология (antropologiya) - antropology
apandisit - аппендицит (apenditsit) - appendix
apolet - эполеты (epoleti) - epaulet
apse - абсцесс (abstcess) - abscess
arena - арена (arena) - arena
aristokrat - аристократ (aristokrat) - aristocrat
aritmetik - арифметика (arifmetika) - arithmetic
arkeolog - археолог (arkheolog) - archeologist
arktik - Арктика (Arktika) - arctic
armonika - гармоника (garmonika)
artist - артист (artist) - actor
asbest - асбест (asbest) - asbestos
asetilen - ацитилен (atsitilen) - acetylene
aseton - ацетон (atceton) - acetone
asfalt - асфальт (asfal't) - asphalt
asistan - ассистент (asistent) - assistant
aspirin - аспирин (aspirin) - aspirin
astronomi - астрономия (astronomiya) - astronomy
astronot - астронавт (astronavt) - astrounaut
atlet - атлет (atlet) - athlete
atmosfer - атмосфера (atmosfera) - atmosphere
atom - атом (atom) - atom
avans - аванс (avans) - advance
ayva - айва (ayva) - quince
azot - азот (azot) - nitrogen

Quoting tsarine

also saray in russian means a small house, used for houshold purposes, like garage, maybe it was borrowed from turkish in a wrong way

 Saray is a Persian word in Turkish, in other Turkic languages and in Russian as well.

I think all languages have borrowings, like for example, Turkish has 6000 arabic words in it, and it also ahs a lot of persian words in it i think, and in arabic i was soo surprised how many turkish words we have!Its so weird, same with french(arabic),a nd english ahs alot of borrowings from arabic too, (theses are the only languages i know, thats why im giving these examples ), so Thta measns all languages are made up if each other 

Can you give some examples?

I know that there are some Arabic words invented by Turks.

Cumhuriyet = Republic is a Turkish invention for example but it´s all Arabic.

Most of these words derive from ancient greek-latin-arab and farsi I believe.Acrobat for instance,is made of two greek words- akri/akro meaning "edge"  and vato meaning  "walk/step".Actually,comparing languages is soooo interesting,because it helps you understand better history and all the links between different cultures.

okay, sure theres a lot! like in egypt we say oda (room), and theres mühendis, zafer,, no wait those are arbic that turks use(i think) şeker,eczane,özür,vatan,madem,aynı, sefer, harita, aile,mimar,heap,mümkün,hükümet,rahat,abla,ektisadi,,dakika,seniye,kitap,defter,çorap,çorba,mana,mevsim,manzara,tam,sokak(we pronounce it zokak)terzi,ceket,ihtra,ihtram,kom,için,isim,hafiza,rüya,saat,tamam,memnun,manzara,cami,patates,raf,resim,sade,bakkal,tarih,hisset,dayima(we add n to the end)ciddi,karar,zaman,fincan,kahve,çay,müddet,şart,haber,ömür,lazim,emin,araba,hediye.

theses are only the things i know from my mind, im sure there are much more (im not sure if all theses are turkish and we took from them or theyre arabic and they took from us :S)

The answer is simple, if they respect the laws of consonants and vowels harmony they are most likely to be pure Turkihs words, otherwise they are borrowings from other languages.