Where does “Pompeiian” come from?

Pompeiian (English) comes from English ān, from Middle English ān, from Old English ān, from Proto-West Germanic ain, from Proto-Germanic ainaz, from Proto-Indo-European óynos — one; single.

Pompeiian (English): Of or pertaining to Pompeii; An inhabitant of...

Definitions

  1. Of or pertaining to Pompeii; An inhabitant of...

Ancestry of “Pompeiian”, step by step

Pompeiian traces back through two separate lines of ancestry.

via English ān

StepLanguageWordMeaning
1Englishān—
2Middle Englishāna, an indefinite article
3Old Englishānlonely; entirely alone, solitary, single; one
4Proto-West Germanicainone
5Proto-Germanicainazone; some
6Proto-Indo-Europeanóynosone; single

via English Pompeii

StepLanguageWordMeaning
1EnglishPompeiiA ruined Roman town in Italy, destroyed by Vesuvius (a volcano) in AD 79
2LatinPompēiīPompeii a
3Oscan*pompefive
4Proto-Italickʷenkʷefive
5Proto-Indo-Europeanpénkʷefive
Every word from Proto-Indo-European óynos →Every word from Proto-Germanic ainaz →Every word from Proto-West Germanic ain →