Where does “perigean” come from?

perigean (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.

perigean (English): Pertaining to the perigee

Definitions

  1. Pertaining to the perigee

Ancestry of “perigean”, step by step

perigean 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 perigee

StepLanguageWordMeaning
1EnglishperigeeThe point, in an orbit about the Earth, that is...
2Frenchpérigéeperigee
3Latinperigaeum
4Ancient Greekγῆland, earth; country; soil
5Ancient Greekγαῖᾰthe Earth; land, earth
Every word from Proto-Indo-European óynosEvery word from Proto-Germanic ainazEvery word from Proto-West Germanic ain