Welsh hil

← Proto-Brythonic *hil (inherited)

← Proto-Celtic *sīlom (inherited)

← English sow (cognate)

← Irish síol (cognate)

← Proto-Indo-European *seh₁- (root)

← Proto-Indo-European *seh₁- (inherited)

← Cornish hil (cognate)

← Latin sēmen (cognate)

→ Welsh hiliaeth (suffix)

→ Irish síol (cognate)

→ Old Irish síl (cognate)