頂戴

ちょうだい receiving; getting

Why it means this

頂 (place on the head) + 戴 (receive reverently) — 'to receive on the head'; a humble word for 'receive' (お土産を頂戴する); also colloquially 'give me' (見せて頂戴).

Breakdown

頂チョウ place on the head, receive, top of head
戴タイ be crowned with, live under (a ruler), receive

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