Where does “calesce” come from?

calesce (English) comes from Latin calesco, from Latin -sco, from Proto-Italic -skō, from Proto-Indo-European -sḱéti — Forms durative or iterative imperfective verbs...

calesce (English): To undergo calescence; to become or grow warm; to heat up; to warm; to glow with heat

Definitions

To undergo calescence; to become or grow warm; to heat up; to warm; to glow with heat

Ancestry of “calesce”, step by step

Step	Language	Word	Meaning
1	Latin	calesco	I grow warm, warm up; am heated; I become...
2	Latin	-sco	Forms inchoative verbs from existing verbs,...
3	Proto-Italic	-skō	—
4	Proto-Indo-European	-sḱéti	Forms durative or iterative imperfective verbs...

Every word from Proto-Indo-European -sḱéti →Every word from Latin -sco →Every word from Latin calesco →