boy

The origin of the word 'boy' is somewhat obscure. It first appeared in Middle English around the 13th century, possibly borrowed from an Anglo-Norman term for a servant or from a Low German or Dutch word meaning 'young gentleman' or 'knave'. Its exact path from Proto-Indo-European is unclear, representing a case where a common, concrete term for a young male person emerged from vernacular sources rather than classical roots. Over time, its meaning narrowed from a general term for a male servant or commoner to its primary modern sense of a male child.

The word 'boy' is a simplex word of uncertain origin, likely entering Middle English as a single, unanalyzable unit. It does not contain separable morphemes in its modern English form.