Ibi tam atrox invidia in Turnum orta est, gladiis in medio positis, ut sine iudicio — novo genere supplici — deiectus in aquam, crate super iniecta, mergeretur.
There such a terrible hatred arose for Turnus, the swords placed in the centre, that without any authority - given to fresh pleas for mercy - he was thrown into the water, a mesh thrown on top, and drowned (sunk.)
Novo genere supplici is a bit tricky. I take it that_genere_ infinitive of geno, genere ( is to bring forth)? Allen & Greenough has the following concerning dative with adjective..
- The dative is used with adjectives (and a few Adverbs) of fitness, nearness, likeness, service, inclination, and their opposites.1
Nihil est tam nātūrae aptum. (Lael. 17)
Nothing is so fitted to nature.
So would supplici be the adjectival form - supplex, supplicis?