What is the meaning of Fras?

Mixed mutation of bras.

shower

onset, attack

run

copious, plentiful, abundant

Alternative form of frasaigh (to shower)

shower

seed

rain, scatter, shower, drip

a phrase

a phrase

rustling (like from something dry and brittle, for example dry leaves)

crunch (of something airy and crispy)

Source: wiktionary.org