the.com/handset

The phone part you hold, back when phones had parts to hold.

means The handheld piece of a phone — mouthpiece, earpiece, and all the buttons in between — that you pick up to talk.

from A straightforward compound of 'hand' and 'set,' coined in the early telephone era when the receiver-and-transmitter unit was literally a 'set' of equipment sized to fit the hand, distinct from the wall- or desk-mounted base that housed the bell and wiring.

origin era
Named when telephones had separate base units
legal meaning
Still the official term in phone contracts
irony
Modern handsets barely touch your hand
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