ternos

ternos is a Latin form of terni, meaning “three each, three at a time”. It is the accusative plural masculine adjective.

Found 27 times in the Latin texts on Socratos.

Where it is used

Caesar, De Bello Gallico 7.73.8: Huius generis octoni ordines ducti ternos inter se pedes distabant.

Source: Socratos (socratos.org), a free reader for Ancient Greek and Latin. Grammar from the Perseus Treebank and Morpheus; dictionary entries from Lewis & Short, A Latin Dictionary (Perseus Digital Library, CC BY-SA). Counts are from the texts on Socratos.