Where does “সংস্কৃত” come from?

সংস্কৃত (Bengali) comes from Sanskrit संस्कृत, from Sanskrit सम्-, from Proto-Indo-Iranian sam-, from Proto-Indo-European sem- — together, one.

Ancestry of “সংস্কৃত”, step by step

StepLanguageWordMeaning
1Sanskritसंस्कृतput together, constructed, well or completely...
2Sanskritसम्-with, together with, along with, together,...
3Proto-Indo-Iraniansam-together, joint, paired
4Proto-Indo-Europeansem-together, one
Every word from Proto-Indo-European sem-Every word from Sanskrit सम्-Every word from Sanskrit संस्कृत