alarum
alarum is a Latin form of ala, meaning “wing; armpit; wing (of an army), squadron of cavalry”. It is the genitive plural feminine noun.
Found 28 times in the Latin texts on Socratos.
Where it is used
Vergil, Aeneid 1.301: remigio alarum, ac Libyae citus adstitit oris.
All forms of ala (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.