Where does “счётная форма” come from?

счётная форма (Russian) comes from Russian счётный, from Russian счёт, from Russian счита́ть, from Russian с-, from Proto-Slavic sъ(n), from Proto-Indo-European ḱóm, from Proto-Indo-European ḱe, from Middle English kyt — to bend; curve; arch; vault; to bow, bend, arch,...

Ancestry of “счётная форма”, step by step

счётная форма traces back through two separate lines of ancestry.

via Russian счётный

StepLanguageWordMeaning
1Russianсчётныйcounting, account, bookkeeping
2Russianсчётcount (the result of a tally that reveals the number of items in a set), counting, reckoning, calculation
3Russianсчита́тьto calculate
4Russianс-down; off, from off
5Proto-Slavicsъ(n)with, accompanying, alongside; with, by means of,...
6Proto-Indo-Europeanḱómbeside, near, by, with
7Proto-Indo-EuropeanḱeDeictic particle, here; Post-positional...
8Middle Englishkyt
9Germankittputty certain kinds of cement used for fixing e.g. window panes
10Old High Germankuti
11Proto-West Germanickwidugum, resin
12Proto-Germanickweduzresin
13Proto-Indo-Europeangʷet-resin, gum; to say, speak
14Proto-Indo-Europeangū-to bend; curve; arch; vault; to bow, bend, arch,...

via Russian фо́рма

StepLanguageWordMeaning
1Russianфо́рмаform
2Frenchformeshape; form
3Middle Frenchformeform
4Old Frenchformeshape, aspect, form
5Latinfōrmaform; figure, shape, appearance
6Etruscanmorma
7Ancient Greekμορφήshape, form; appearance; outline
Every word from Proto-Indo-European gū-Every word from Proto-Indo-European gʷet-Every word from Proto-Germanic kweduz
счётная форма — Etymology, Origin & Word History | Etymology Explorer