Where does “Polybius square” come from?

Polybius square (English) comes from English square, from Middle English square, from Old French esquarre, from Vulgar Latin exquadra, from Latin ex, from Latin commūnicō, from Latin commūnis, from Old Latin com(m)oinis — resin.

Polybius square (English): A character code represented by two sets of six...

Definitions

  1. A character code represented by two sets of six...

Ancestry of “Polybius square”, step by step

Polybius square traces back through two separate lines of ancestry.

via English square

StepLanguageWordMeaning
1EnglishsquareA polygon with four sides of equal length and...
2Middle EnglishsquareA square tool used to ensure a right angle
3Old Frenchesquarresquare
4Vulgar Latinexquadra
5LatinexA name of the letter "X"; out of, from
6Latincommūnicōto impart, share
7Latincommūniscommon, commonplace, ordinary, general, universal, shared, shared alike, of both sides, belonging to two or more together
8Old Latincom(m)oinis
9Proto-Italickommoiniscommon
10Proto-Indo-Europeanḱom-moy-ni-held in common
11Proto-Indo-Europeanḱómbeside, near, by, with
12Proto-Indo-EuropeanḱeDeictic particle, here; Post-positional...
13Middle Englishkyt
14Germankittputty certain kinds of cement used for fixing e.g. window panes
15Old High Germankuti
16Proto-West Germanickwidugum, resin
17Proto-Germanickweduzresin

via English Polybius

StepLanguageWordMeaning
1EnglishPolybiusan Ancient Greek historian of the Hellenistic period
2Ancient GreekΠολύβιοςMany lives
3Ancient Greekβίοςlife
4Ancient GreekΓένεσιςGenesis. The title of the first book of the Bible and Pentateuch as in the Septuagint translation in Greek
5Proto-Hellenicgénetisorigin, source
6Proto-Indo-Europeanǵénh₁tisbirth, production
7Proto-Indo-Europeanǵenh₁-to produce, to beget, to give birth
Every word from Proto-Germanic kweduzEvery word from Proto-West Germanic kwiduEvery word from Old High German kuti