Where does “phases” come from?

Phases comes from Latin phasis, from Ancient Greek φάσις, derived from the Ancient Greek suffix -σις combined with Proto-Indo-European bʰeh₂-, meaning to appear or show.

phases (English): plural of phase; plural of phasis; Third-person...

Definitions

  1. plural of phase; plural of phasis; Third-person...

Ancestry of “phases”, step by step

phases traces back through two separate lines of ancestry.

via English phase

StepLanguageWordMeaning
1EnglishphaseA distinguishable part of a sequence or cycle...
2New Latinphasis
3Ancient Greekφάσιςappearance; utterance, statement, expression
4Ancient GreekφαίνωI cause to appear, bring to light; I show,...
5English-typeimpressed form; stamp; print; typical form; Used...
6Ancient GreekτύποςA blow, pressing; The results of a blow: mark,...
7Ancient Greekτύπτωto beat, strike, smite; to beat, strike oneself
8Proto-Indo-European(s)tewp-to push, to stick
9Proto-Indo-European(s)tew-to push, to hit

via English phasis

StepLanguageWordMeaning
1Englishphasisphase; stage; aspect
Every word from Proto-Indo-European (s)tew-