lacerto
lacerto is a Latin form of lacertus, meaning “upper arm, arm; (pl.) strength”. It is the ablative singular masculine noun.
Found 41 times in the Latin texts on Socratos.
Where it is used
Vergil, Aeneid 9.402: Ocius adducto torquens hastile lacerto,
All forms of lacertus (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.