Kassius

Kassius is a spelling of Cassius, an ancient Roman family name. Cassius may be related to a Latin word meaning hollow, although that explanation is not certain. The name’s Roman identity is firmer than its literal translation, and its history includes the political and literary figure Gaius Cassius Longinus, one of the conspirators against Julius Caesar.

The K spelling gives the opening a visibly hard consonant in English while retaining the full Roman-style ending. Cassius is also familiar through Shakespeare’s Julius Caesar, so the name family carries a literary association as well as an ancient one. Kassius offers that established background through a different spelling, rather than through an unrelated modern meaning.