myEtymology.com: Greek etymology of patriotes

Etymology of the Greek word patriotes (πατριώτης)

the Greek word patriotes, πατριώτης

derived from the Greek word patrios (of one's fathers)

derived from the Greek word pater, πατήρ (father; a 'father' (literally or figuratively, near or more remote))

using the Proto-Indo-European prefix pəter- (father)