party

The word 'party' entered English in the late 13th century from Old French 'partie', meaning "a part, a side, a share." This French term derived from the feminine past participle of Latin 'partire' (to divide). Its original sense was of a division or a side in a dispute, reflecting the concept of a group sharing a common position. From this meaning of a faction or group united by a common cause, the word logically evolved to denote a political faction in the early 18th century. The now-dominant sense of a social gathering emerged in the early 18th century, developing from the idea of a group coming together to share in an activity, thus completing the journey from "division" to "shared participation."

Structure: part (part, share) + y (noun suffix) 'part' originates from Latin 'partire' (to divide, share) via Old French 'partir'. In this word, it functions as the core root. '-y' is a noun-forming suffix of Latin origin ('-ia') via French ('-ie'), indicating a state, condition, or collective entity.