Latin marga

← Breton marg (cognate)

← Proto-Brythonic *marg- (mention)

← Welsh marian (cognate)

← Irish marla (cognate)

← Latin Margidinum (mention)

→ English marl (mention)

→ English lithomarge (derived)

→ Spanish marga (derived)

→ French marne (mention)

→ Latin glisomarga (link)

→ Dutch mergel (mention)

→ Portuguese marga (derived)