Where does “dulcitūdō” come from?

dulcitūdō (Latin) comes from Latin dulcis, from Proto-Indo-European dl̥kú- — sweet.

Ancestry of “dulcitūdō”, step by step

Step	Language	Word	Meaning
1	Latin	dulcis	sweet; sweet-smelling, sweet-scented, fragrant;...
2	Proto-Indo-European	dl̥kú-	sweet

dulcitūdō — Etymology, Origin & Word History | Etymology Explorer