köken: Borrowed from Classical Persian بَچَّه (bačča), from Proto-Iranian *wacáh, from Proto-Indo-Iranian *watsás, from Proto-Indo-European *wetsós, from *wétos + *-ós. Doublet of बछड़ा (bachṛā, “calf, child, boy”).
boy, little boy (a young male human under 10-12 years of age) · son, baby boy (someone's young male child under 10-12 years of age) · lacking sufficient power, position, skill, or value to do/achieve something (-hoz/-hez/-höz)
köken: From Old Irish búachaill (“cowherd”), from Proto-Celtic *boukolyos, from Proto-Indo-European *gʷowkólos, from *gʷṓws (“cow”) + *kʷel- (“to revolve, turn around”). Cognates include Breton bugel (“child”), Welsh bugail (“shepherd”), and Ancient Greek βουκόλος (boukólos, “cowherd”).
köken: Etymology tree Esperanto knabo Proto-Indo-European *-tós Proto-Italic *-tosder.? Late Latin -ittus Old French -et Middle French -et French -etbor. ▲ Late Latin -ittus Italian -ettobor. Esperanto -et- Esperanto knabeto From knabo + -et-.