playmate
UK: ˈpleɪmeɪt | US: ˈpleɪmeɪt
n. a companion in play, especially a child’s friend
n. (historical) a term for a friendly or romantic partner in informal contexts
The word "playmate" combines "play," derived from Old English plegian (to exercise, frolic), and "mate," from Middle Low German māt (companion). It emerged in the 16th century to describe a companion in recreational activities, reflecting the social value of shared play. The term retains its literal meaning while occasionally extending metaphorically to close relationships.
She invited her favorite playmate to the birthday party.
The children laughed together like lifelong playmates.
In the 18th century, "playmate" sometimes referred to a lover in poetic contexts.
The park was full of young playmates building sandcastles.
He missed his childhood playmate after moving to a new city.