Franco-Provençal falêr

← French falloir (borrowed)

← Franco-Provençal falyir (cognate)

← Franco-Provençal fallir (mention)

← Franco-Provençal faut (mention)

← Franco-Provençal (mention)

← Franco-Provençal valêr (mention)

← Franco-Provençal (mention)

← Latin fallit (derived)

← Latin fallō (derived)

→ French falloir (link)