From Wiktionary, the free dictionary
llavors analyzed as a plural → singular llavò, re-pluralized as llavons and/or influenced by doncs.[1]
llavons
- (nonstandard) Alternative form of llavors
- ^ “llavors” in Diccionari català-valencià-balear, Antoni Maria Alcover and Francesc de Borja Moll, 1962.