Rex
/rɛks/noun
A king; also used as a title or name meaning king.
Did you know?Latin rex comes from the Proto-Indo-European root *h₃reǵ- meaning “to straighten, rule,” the same ancient source behind words tied to kingship and right order in several Indo-European languages.
Etymological Timeline
Proto-Indo-European
PIE
*h₃reǵ-
“to straighten; to rule”
Proto-Italic
PI
*rēǵs
“king, ruler”
Old Latin
Latin
rēx
“king, ruler”
Classical Latin
Latin
rēx
“king; sovereign”
Modern English
English
rex
“a king; used as a title, name, or in scientific names”