köken: From carro. A Tuscan adaptation of carrossa, with northern Italian assibilation of earlier carroccia, a derivative of carro with the suffix -occia, -occio (cf. -uccia, -uccio). The middle vowel not being /u/ means it cannot derive from Latin carrūca (which gave French charrue). Compare Sicilian carrozza, Friulian caroce, cf. also Romanian căruță.
köken: Borrowed from Russian коляска (koljaska), diminutive of колесо (koleso), from Old East Slavic колеса (kolesa), plural of коло (kolo), from Proto-Slavic *kolo (“wheel”), from Proto-Indo-European *kʷekʷlom (“circle”), *kʷékʷlos (“circle”). Cognates include English calèche, French calèche, Polish kołasa, Persian کالسکه.
Etymology tree Proto-Indo-European *ḱers- Proto-Indo-European *-ós Proto-Indo-European *ḱr̥sós Proto-Celtic *karros Gaulish *karrosbor. Latin carrus Italian carro Proto-Indo-European *-tós Proto-Italic *-tosder.? Late Latin -ittus Italian -ettoder. Italian -etta Italian carrettabor. Polish kareta Borrowed from Italian carretta.