re‧gi‧cide /ˈredʒəsaɪd, ˈredʒɪsaɪd/
noun formal[
Date: 1500-1600;
Language: Latin;
Origin: rex 'king' + English -icide]
1. [uncountable] the crime of killing a king or queen
2. [countable] someone who kills a king or queen
[TahlilGaran] Dictionary of Contemporary English ▲