The Proto-Indo-European word *trēbs
Word *trēbs
Meaning dwelling
Synonyms *kus-, *solo/ehₐ~selo-, *h₂wóstu

Comments
Lat. trabēs, Oscan trííbúm, Umbrian tremnu, Lith. troba, Ltv. traba, Eng. þorp/thorp, Gm. thorf/Dorf, Gk. teremnon, Welsh treb; tref, ON ðorp; þorp, Goth. þaúrp, Ir. díthrub/

Other words that might be of interest
*dṓm ‘house’, *dhwṓr ‘gate, door’, *weik̂- ‘village, clan’, *k̂óimos ‘household, village’, *pḗr ‘house’, *dṓm ‘house, household, nuclear family’, *dóm(hₐ)os ‘house, household’, *sedes- ‘seat’, *sedlom ‘seat’, *sedros ‘seat, chairlike object’, *tk̂ítis ‘settlement’