LATIN DICTIONARYLexicon Latīnum
adjective

per-dĭus

Meaning

  1. all day long

per-dĭus, a, um, adj. dies,
I. all day long, the livelong day (post-class.): stare solitus Socrates dicitur, pertinaci statu perdius atque pernox, Gell. 2, 1, 1; App. M. 5, p. 161, 11; 9, p. 219, 23.

Quick answers

What does per-dĭus mean in Latin?
per-dĭus, a adjective, means “all day long”.