Old French if

← Breton ivin (cognate)

← Gaulish *iwos (derived)

← Proto-Celtic *iwos (derived)

← Welsh ywen (cognate)

← Proto-Germanic *īhwaz (derived)

← Proto-Indo-European *h₁eyHweh₂ (derived)

← Old Irish eó (cognate)

→ French if (inherited)

→ French duratif (suffix)

→ Old French plenteif (suffix)

→ Old French jointif (suffix)

→ Norman if (inherited)