The Proto-Indo-European word *róth₂o/ehₐ
Word *róth₂o/ehₐ
Meaning wheel
Synonyms *kʷel-, *kʷekʷlóm, *h₂/₃r̥gis, *dhroghós

Comments
Lat. rota, Alb. rrota, Lith. ratas, Ltv. rats, Gaul. Rotomagus, Gm. rad/Rad, Eng. rodur/, Ir. /rath, Skr. ratha, Welsh rhod, Av. raθa, ON rǫ ðull