Human Sacrifice among the Semnones

Into the forest, at a time appointed by auguries of the Fathers, and in ancient terror of the sacred, ambassadors of the people, both of their name and of their blood, assemble, and in the public hewing down of a man, they celebrate their barbarous rites, horrible and primordial.

Stato tempore in silvam auguriis patrum et prisca formidine sacram nominis eiusdemque sanguinis populi legationibus coeunt caesoque publice homine celebrant barbari ritus horrenda primordia.

Tacitus, On the Origin and Disposition of the Germans, XXXIX, 2.