送別
そうべつ · soubetsu · JLPT N2 · noun
farewell
👋 送 (send) + 別 (part/separate) = sending someone off as they part ways
送 means to send or see off, and 別 means to part or separate. Together they name the moment you see someone off as they go their separate ways.
送 — 辶 (walk) + 关 (simplified from 灷, fire/torch)
Originally depicted hands holding a torch to escort someone on a journey, combined with the 'walk' radical 辶. The right side 关 is a simplification of an older form showing fire being carried. The core meaning evolved from 'escort/see off' to the broader sense of 'send' or 'give as a gift.'