Where does “ελληνορωμαϊκός” come from?

ελληνορωμαϊκός (Greek) comes from Greek ρωμαϊκός, from Ancient Greek Ῥωμαϊκός, from Ancient Greek ῥωμαῖος, from Ancient Greek -αῖος, from Ancient Greek -ῐος, from Proto-Indo-European -yós — Creates adjectives from noun or verb stems.

ελληνορωμαϊκός (Greek): Graeco-Roman British, Greco-Roman US

Definitions

  1. Graeco-Roman British, Greco-Roman US

Ancestry of “ελληνορωμαϊκός”, step by step

StepLanguageWordMeaning
1GreekρωμαϊκόςRoman (of or from Rome)
2Ancient GreekῬωμαϊκόςRoman; Latin
3Ancient GreekῥωμαῖοςRoman
4Ancient Greek-αῖοςSuffix added to nouns or adjectives, forming adjectives: pertaining to, belonging to ("of")
5Ancient Greek-ῐοςbelonging to; of”, “belonging to”, “pertaining to
6Proto-Indo-European-yósCreates adjectives from noun or verb stems
Every word from Proto-Indo-European -yósEvery word from Ancient Greek -ῐοςEvery word from Ancient Greek -αῖος