Buttock
/ˈbʌt.ək/noun
Either of the two rounded fleshy parts of the human body that sit on the pelvis.
Did you know?Buttock is not a mystical word at all: it likely began as a Germanic term for a rounded lump or stump, later shifting into the body-part meaning in English.
Etymological Timeline
Proto-Germanic
PGmc
*but-
“A lump, stump, or rounded projection.”
Old English
OE
buttuc
“A small end, stub, or rounded protruding part.”
Middle English
ME
buttok
“A rounded lump or end; later, the rounded parts of the body.”
16th Century
English
buttock
“The buttocks, especially in plural use.”
Modern English
English
buttock
“Either of the two fleshy parts of the human body forming the posterior.”