acerrime
acerrime is a Latin form of acer, meaning “sharp, keen, fierce”. It is the vocative singular feminine superlative noun or vocative singular masculine superlative noun.
Found 83 times in the Latin texts on Socratos.
Where it is used
Caesar, De Bello Gallico 5.43.4: … ent, non modo demigrandi causa de vallo decederet nemo, sed paene ne respiceret quidem quisquam, ac tum omnes acerrime fortissimeque pugnarent.
Valerius Maximus, Facta et Dicta Memorabilia 4.1.12: … bona cum uenia duo Metelli, Macedonicus et Numidicus, maxima patriae ornamenta strictim se narrari patientur. Acerrime cum Scipione Africano Metellus Macedonicus dissenserat, eorumque ab aemulatione uirtutis profecta concitatio …
All forms of acer (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.