Webster's Revised Unabridged Dictionary · 1913

Foible

Foible , adjective

[Old French foible. See Feeble.]

Weak; feeble. [Obsolete] — Lord Herbert

Foible , noun

1.
A moral weakness; a failing; a weak point; a frailty.
A disposition radically noble and generous, clouded and overshadowed by superficial foibles. — De Quincey
2.
The half of a sword blade or foil blade nearest the point; -- opposed to forte.