Where does “as quais” come from?

as quais (Portuguese) comes from Portuguese as, from Portuguese a, from Latin Ad, from Latin illic, from Latin ille, from Latin olle, from Proto-Italic *olnos — that.

as quais (Portuguese): Feminine plural form of demonstrative o qual

Definitions

  1. Feminine plural form of demonstrative o qual

Ancestry of “as quais”, step by step

as quais traces back through two separate lines of ancestry.

via Portuguese as

StepLanguageWordMeaning
1Portugueseasfeminine plural of o; them; plural of a
2PortugueseaAlternative spelling of á; feminine singular of...
3LatinAdtoward, to
4Latinilliche, she, it, yonder, that, overthere; in that...
5Latinillethat; those; "; demonstrative pronoun "; that...
6LatinolleArchaic form of ille
7Proto-Italic*olnosthat

via Portuguese quais

StepLanguageWordMeaning
1Portuguesequaisplural of qual; which
Every word from Proto-Italic *olnosEvery word from Latin olleEvery word from Latin ille
as quais — Etymology, Origin & Word History | Etymology Explorer