Where does “Ρωμαίικα” come from?

Ρωμαίικα (Greek) comes from Greek ρωμαίικος, 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.

Ancestry of “Ρωμαίικα”, step by step

StepLanguageWordMeaning
1GreekρωμαίικοςGreek, of the Greek people
2GreekρωμαϊκόςRoman (of or from Rome)
3Ancient GreekῬωμαϊκόςRoman; Latin
4Ancient GreekῥωμαῖοςRoman
5Ancient Greek-αῖοςSuffix added to nouns or adjectives, forming adjectives: pertaining to, belonging to ("of")
6Ancient Greek-ῐοςbelonging to; of”, “belonging to”, “pertaining to
7Proto-Indo-European-yósCreates adjectives from noun or verb stems

Words derived from “Ρωμαίικα

Every word from Proto-Indo-European -yósEvery word from Ancient Greek -ῐοςEvery word from Ancient Greek -αῖος