Where does “qu’est-ce que c’est” come from?

qu’est-ce que c’est (French) comes from French c’est, from French cé, from Spanish éste, from Latin iste, from Latin hāc, from Latin hīc, from Latin heic, from Latin hic — whale, sea monster; abyss.

qu’est-ce que c’est (French): what is that? what is this? what is it? what does that mean?

Definitions

  1. what is that? what is this? what is it? what does that mean?

Ancestry of “qu’est-ce que c’est”, step by step

qu’est-ce que c’est traces back through two separate lines of ancestry.

via French c’est

StepLanguageWordMeaning
1Frenchc’estit is (used to define the preceding word)
2FrenchThe name of the Latin-script letter C
3Spanishéstethis one
4Latinistethat near you; those in the plural
5Latinhācthis way; these; in this place (or way)
6Latinhīcthis; these in the plural
7Latinheic
8Latinhicthis; these in the plural
9Proto-Italichek(e)
10Proto-Indo-Europeangʰi-ḱethis, here
11Proto-Indo-EuropeanḱeDeictic particle, here; Post-positional...
12Middle Englishkyt
13Russianкитwhale; genitive plural of ки́та
14Old Church Slavonicкитъwhale
15Ancient Greekκῆτοςwhale, sea monster; abyss

via French qu’est-ce que

StepLanguageWordMeaning
1Frenchqu’est-ce quewhat, what is it that used as an interrogative for a direct object
Every word from Ancient Greek κῆτος