What is the meaning of Fass?

firm

Alternative spelling of fast.

nosy; inquisitive

meddle in others' affairs

fringe

leek root

fas, n..”, in OED Online Paid subscription required, Oxford: Oxford University Press, 29 November 2019.

fā̆s, n.”, in MED Online, Ann Arbor, Mich.: University of Michigan, 2007, retrieved 2019-11-29.

Source: wiktionary.org