Danish fyrretyve

← Danish fyrre (link)

← Danish tyve (mention)

← Danish halvtredsindstyve (mention)

← Danish tresindstyve (mention)

← German vierzig (cognate)

← English forty (cognate)

← Proto-Germanic *fedwōr tigiwiz (inherited)

← Old Norse fjórir tigir (derived)

← Swedish förtio (cognate)

→ Danish fyrre (clipping)