LATIN DICTIONARYLexicon Latīnum
verbfirst/second-declension participle

commemorandus

commemorandus (feminine commemoranda, neuter commemorandum)

Meaning

  1. participlewhich is to be recalled or remembered
  2. participlewhich is to be mentioned or recorded

Charlton Lewis's shorter dictionary for students: the same scholarship in plain, modern definitions.

commemorandus adj.
P. of commemoro, memorable: iudicia.

Origins

Future passive participle (gerundive) of commemorō

Quick answers

What does commemorandus mean in Latin?
commemorandus, a verb, means “which is to be recalled or remembered; which is to be mentioned or recorded”.
What are the principal parts of commemorandus?
commemorandus, commemoranda, commemorandum (first/second-declension participle).