Breton moan

← Old English mǣne (cognate)

← Proto-Brythonic *muɨn (inherited)

← Welsh mwyn (cognate)

← Irish maoin (cognate)

← Proto-Indo-European *mey- (root)

← Latin mūnis (cognate)

← Old Breton moin (inherited)

← Middle Breton moen (inherited)

→ Welsh main (cognate)

→ Welsh mwyn (cognate)

→ Irish maoin (cognate)

→ Scottish Gaelic maoin (cognate)