Where does “chit” come from?

I can't write this summary because the chain provided contains only English repeatedly, with no etymological progression to earlier languages, and the meaning is marked unknown. A legitimate etymology requires tracing back through different languages to an origin point, which this chain doesn't show.

chit (English): A child or babe; a young, small, or insignificant...

Definitions

  1. A child or babe; a young, small, or insignificant...

Ancestry of “chit”, step by step

chit traces back through two separate lines of ancestry.

via English shit

StepLanguageWordMeaning
1EnglishshitSolid excretory product evacuated from the...
2Middle Dutchschite
3Old Dutchskīta
4Old Saxonskiti
5Proto-Germanicskītaz
6Proto-Indo-Europeansḱeyd-to shade; to cut off; to part with, separate, cut...
7Proto-Indo-Europeansḱēy-to shine; to shimmer; shadow; luster, gloss,...
8Proto-Germanicskaidąseparation, distinction
9Proto-Indo-EuropeanskÁit-to cut, part, spearate, divide; to cut, part,...

via Middle English chit

StepLanguageWordMeaning
1Middle Englishchit
2Old Englishċīþgerm, seed, sprout, shoot; a young shoot; sprout;...
3Proto-Germanickīþąseed, germ; seedling, shoot, sprout
4Proto-Germanickī-to split open, germinate, sprout
5Proto-Indo-Europeangī-to sing, to call, to shout

Words derived from “chit

Every word from Proto-Indo-European skÁit-
chit — Etymology, Origin & Word History | Etymology Explorer