Where does “São Toméan” come from?

São Toméan (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.

São Toméan (English): Of, or pertaining to, São Tomé and Principe or...

Definitions

  1. Of, or pertaining to, São Tomé and Principe or...

Ancestry of “São Toméan”, step by step

São Toméan 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 São Tomé

StepLanguageWordMeaning
1EnglishSão Toméin all its senses
2PortugueseSão ToméThomas the Apostle, Saint Thomas
3PortugueseSãoforms the titles of male saints whose names begin...
4Old Portuguesesão
5Latinsānussound in body, healthy, whole, well
6Proto-Indo-Europeanswā-n-healthy; whole; active; vigorous
Every word from Proto-Indo-European óynosEvery word from Proto-Germanic ainazEvery word from Proto-West Germanic ain