Etymology

tach

T1A1C3H4

Today it means: A hat. Full definition →

Ask AI about its historyChatGPTClaudePerplexityGoogle AIGrok

tach · noun1

Clipping of tachometer.

tach · noun2

Backslang for hat (with /tʃ/ substituted for the /h/).

Etymology from Wiktionary, CC BY-SA 4.0.