alternis
alternis is a Latin form of alternus, meaning “alternate, by turns, one after the other”. It is the ablative plural feminine adjective.
Found 95 times in the Latin texts on Socratos.
Where it is used
Caesar, De Bello Gallico 7.23.5: Hoc cum in speciem varietatemque opus deforme non est alternis trabibus ac saxis, quae rectis lineis suos ordines servant, tum ad utilitatem et defensionem urbium summam ha …
Vergil, Georgics 1.71: Alternis idem tonsas cessare novalis
All forms of alternus (declension table)
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.