di genuerunt

“di genuerunt” is quoted as a hexameter line ending in Ennius; but what does it mean? Neither of my Latin/English dictionaries list a verb that could have a conjugation form “genuerunt”.

(“di” presumably means “the gods”.)

genuerunt perfect of gigno

The full quote is from Cicero, de Rep., I, 41, 61: " Iusto quidem rege cum est populus orbatus pectora diu tenet desiderium, sicut ait Ennius, post optimi regis obitum—
simul inter
sese sic memorant: ‘O Romule Romule die
qualem te patriae custodem di genuerunt!
O pater o genitor o sanguen dis oriundum! "

So di genuerunt is not a hexameter but part of one. The verb is gigno see http://www.perseus.tufts.edu/hopper/morph?l=Gigno&la=la#lexicon

It’s a perfect 3 pl. so the line is “what a guardian of the country the gods bred in you”.