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.