auxiliis
auxiliis is a Latin form of auxilium, meaning “help; (pl.) auxiliary troops”. It is the ablative plural neuter noun.
Found 146 times in the Latin texts on Socratos.
Where it is used
Caesar, De Bello Gallico 2.14.6: Quod si fecerit, Haeduorum auctoritatem apud omnes Belgas amplificaturum, quorum auxiliis atque opibus, si qua bella inciderint, sustentare consuerint.
All forms of auxilium (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.