Welsh gwyn

← Proto-Brythonic *gwɨnn (inherited)

← Proto-Celtic *windos (inherited)

← Middle Welsh gwynn (inherited)

→ English penguin (mention)

→ English gwyniad (mention)

→ English Gwyn (mention)

→ English Wyn (mention)

→ Welsh Llanfairpwllgwyngyllgogerychwyrndrobwllllantysiliogogogoch (mention)

→ Welsh Gwen (cognate)

→ Welsh Gwynedd (mention)

→ Welsh Gwyneth (mention)

→ Welsh Gwyneira (affix)

→ Welsh enllyn gwyn (mention)

→ Welsh gwynnu (suffix)

→ Welsh gwenith (mention)

→ Welsh rhuddwyn (compound)

→ Welsh Ffordd Wen (compound)

→ Welsh meinwen (compound)

→ Welsh troed-yr-ŵydd gwyn (compound)

→ Portuguese pinguim (mention)

→ Old Irish finn (cognate)