Fun"da*ment (?), n. [OE. fundament, fundement, fondement, OF. fundement, fondement, F. fondement, fr. L. fundamentum foundation, fr. fundare to lay the bottom, to found, fr. fundus bottom. See Fund.]
1.
Foundation.
[Obs.]
Chaucer.
2.
The part of the body on which one sits; the buttocks; specifically Anat., the anus.
Hume.
© Webster 1913.