Where does “क्वथनांक” come from?

क्वथनांक (Hindi) comes from Hindi अंक, from Sanskrit अङ्क, from Proto-Indo-Aryan Hankás, from Proto-Indo-Iranian Hánkas, from Proto-Indo-European h₂ónkos, from Proto-Indo-European -os — Creates action nouns or result nouns from verbs;...

क्वथनांक (Hindi): boiling point

Definitions

boiling point

Ancestry of “क्वथनांक”, step by step

क्वथनांक traces back through two separate lines of ancestry.

via Hindi अंक

Step	Language	Word	Meaning
1	Hindi	अंक	number, numeral; mark, spot; valuation
2	Sanskrit	अङ्क	hook; part of a chariot; curve
3	Proto-Indo-Aryan	Hankás	—
4	Proto-Indo-Iranian	Hánkas	—
5	Proto-Indo-European	h₂ónkos	bend, turn
6	Proto-Indo-European	-os	Creates action nouns or result nouns from verbs;...

via Hindi क्वथन

Step	Language	Word	Meaning
1	Hindi	क्वथन	boiling
2	Sanskrit	-अन	forms neuter nouns
3	Proto-Indo-European	-nós	Creates verbal adjectives from roots

Every word from Proto-Indo-European -os →Every word from Proto-Indo-European h₂ónkos →Every word from Proto-Indo-Iranian Hánkas →