become fierce/violent/savage/hard (persons/battle/disease)
Latin word, found 18 times in the texts on Socratos.
Vergil, Georgics 3.504: sin in processu coepit crudescere morbus,
Vergil, Aeneid 7.788: quam magis effuso crudescunt sanguine pugnae.
Silius Italicus, Punica 4.449: mole retorquebat crudescens caedibus hastas,
All forms of crudesco