Where does “trentièmement” come from?
trentièmement (French) comes from French trentième, from French trente, from Old French trente, from Latin trīgintā, from Proto-Indo-European tridḱómt, from Proto-Indo-European tri-, from Proto-Indo-European tréyes — three.
trentièmement (French): thirtiethly
Ancestry of “trentièmement”, step by step