Where does “phase” come from?

Phase derives from Latin phasis, from Ancient Greek φάσις, a nominalization of the root bʰeh₂- meaning "to shine or appear," ultimately from Proto-Indo-European bʰeh₂-s-ri-.

phase (English): A distinguishable part of a sequence or cycle...

Definitions

  1. A distinguishable part of a sequence or cycle...

Ancestry of “phase”, step by step

phase traces back through two separate lines of ancestry.

via New Latin phasis

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

via Latin phase

StepLanguageWordMeaning
1LatinphasePassover; the Passover sacrifice; Paschal Lamb
2Hebrewפָּסַח

Words derived from “phase

Every word from Proto-Indo-European (s)tew-Every word from Proto-Indo-European (s)tewp-Every word from Ancient Greek τύπτω