Where does “sgwariau” come from?

sgwariau (Welsh) comes from Welsh sgwâr, from English square, from Middle English square, from Old French esquarre, from Vulgar Latin exquadra, from Latin ex, from Latin commūnicō, from Latin commūnis — whale, sea monster; abyss.

Ancestry of “sgwariau”, step by step

StepLanguageWordMeaning
1Welshsgwârsquare
2EnglishsquareA polygon with four sides of equal length and...
3Middle EnglishsquareA square tool used to ensure a right angle
4Old Frenchesquarresquare
5Vulgar Latinexquadra
6LatinexA name of the letter "X"; out of, from
7Latincommūnicōto impart, share
8Latincommūniscommon, commonplace, ordinary, general, universal, shared, shared alike, of both sides, belonging to two or more together
9Old Latincom(m)oinis
10Proto-Italickommoiniscommon
11Proto-Indo-Europeanḱom-moy-ni-held in common
12Proto-Indo-Europeanḱómbeside, near, by, with
13Proto-Indo-EuropeanḱeDeictic particle, here; Post-positional...
14Middle Englishkyt
15Russianкитwhale; genitive plural of ки́та
16Old Church Slavonicкитъwhale
17Ancient Greekκῆτοςwhale, sea monster; abyss
Every word from Ancient Greek κῆτος