foible

Definition of Foible in English :

a behavioral attribute that is distinctive and peculiar to an individual

2. foible

the weaker part of a sword's blade from the forte to the tip

WordNet Lexical Database for English. Princeton University. 2010.

Foible

noun

1.

a slight peculiarity or minor weakness; idiosyncrasy

2.

the most vulnerable part of a sword's blade, from the middle to the tip

Compare forte1 (sense 2)

noun

1.

a small weakness; slight frailty in character

2.

the weakest part of a sword blade, from the middle to the point

n.

1. A minor weakness or failing of character.

2. The weaker section of a sword blade, from the middle to the tip.