Where does “चिं” come from?

चिं (Newari) comes from Sanskrit चिह्न, from Sanskrit -अन, from Proto-Indo-European -nós — Creates verbal adjectives from roots.

Ancestry of “चिं”, step by step

StepLanguageWordMeaning
1Sanskritचिह्नmark, sign
2Sanskrit-अनforms neuter nouns
3Proto-Indo-European-nósCreates verbal adjectives from roots
Every word from Proto-Indo-European -nós →Every word from Sanskrit -अन →Every word from Sanskrit चिह्न →