Where does “Cassian” come from?

Cassian comes from Latin Cassianus, a Roman cognomen of uncertain ultimate origin and meaning.

Cassian (English): of mostly historical use

Definitions

  1. of mostly historical use

Ancestry of “Cassian”, step by step

StepLanguageWordMeaning
1LatinCassianus
2LatinCassiusa Roman nomen gentile, gens or "family name" held by many Roman politicians, historians and other notable individuals. See Cassia gens
3Latincassushollow, empty, devoid of something; lacking;...
4Latincadōto fall, to fall out
5Proto-Italickadōfall, sink
6Proto-Indo-Europeanḱad-to fall
Every word from Proto-Indo-European ḱad-