Lewis & Short

Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.

Commŏdĭus, a, um, v. 2. Commodus, II.

2. Commŏdus, i, m., a Roman cognomen; so L. Aelius Aurelius Commodus, Roman emperor, Lampr. Commod. 1 sq.; Eutr. 8, 15 al.
Hence,

    1. 1. Commŏdĭā-nus, a, um, adj., of or pertaining to Commodus: horti, Lampr. Commod. 8: thermae, Spart. Nigid. 6 al.
    2. 2. Commŏ-dĭus, a, um, adj., the same: Nonae, Lampr. Commod. 12; cf. id. ib. 11.
    3. 3. Commŏ-dus, a, um, adj., the same: mensis, i. e. August, which Commodus wished to name after himself, Lampr. Commod. 11.