Welsh ynys

← Proto-Brythonic *ɨnɨs (inherited)

← Proto-Celtic *enistī (inherited)

← Old Welsh inis (inherited)

→ English Hafodyrynys (affix)

→ Welsh Ynys Manaw (mention)

→ Welsh Ynys Wyth (compound)

→ Welsh ynysig (affix)

→ Welsh ynyswr (affix)

→ Welsh ynysfor (compound)

→ Welsh ynysu (affix)

→ Irish inis (cognate)

→ Latin insula (cognate)

→ Old Irish inis (cognate)