Where does “santri” come from?

santri (Malay) comes from Tamil சாத்திரி, from Hindi शास्त्री, from Sanskrit शास्त्रिन्, from Sanskrit -इन्, from Proto-Indo-European -iHnos, from Proto-Indo-European -no- — adjectival suffix.

Ancestry of “santri”, step by step

StepLanguageWordMeaning
1Tamilசாத்திரி—
2Hindiशास्त्रीscientist
3Sanskritशास्त्रिन्learned in the shastras
4Sanskrit-इन्possessing, showing possession, doer
5Proto-Indo-European-iHnosCreates adjectives of materials
6Proto-Indo-European-no-adjectival suffix
Every word from Proto-Indo-European -no- →Every word from Sanskrit -इन् →Every word from Proto-Indo-European -iHnos →