barb
/bɑː(ɹ)b/noun
Definitions
The point that stands backward in an arrow, fishhook, etc., to prevent it from being easily extracted. Hence: Anything which stands out with a sharp point obliquely or crosswise to something else.
A hurtful or disparaging remark.
A beard, or that which resembles it, or grows in the place of it.
Armor for a horse, corrupted from bard.
verb
Definitions
To furnish with barbs, or with that which will hold or hurt like barbs, as an arrow, fishhook, spear, etc.
To cover a horse in armor, corrupted from bard.
To cut (hair).
To shave or dress the beard of.