vāla

Etymology 1
. Although both Pali and documented Sanskrit have a by-form with initial b- ( and ), the by-forms need not be a common inheritance.

Noun

 * 1) hair of the tail
 * 2) horsehair
 * 3) tail

Etymology 2
Apparently inherited from. However, both these forms look like Prakritisations of and its apparent source 🇨🇬, so relationships may be more complex.

Adjective

 * 1) malicious, troublesome, difficult