duo, ae, o, num. adj., two.
duodecim [duo + decem], indecl. num. adj., twelve.
duodecimus, a, um [duo + decimus], num. adj., twelfth.
duplex, icis [duo + plicō, to fold], adj., twofold, double.
duplicō, āre, āvi, ātus [duplex], to double, repeat.
dūrus, a, um, adj., hard, harsh, difficult.
dux, ducis [dūcō], m., a leader, guide, commander.
E.
ē, see ex.
Eborācum, ī, n., a city in Britain, modern York.