Where does “exsiccandus” come from?

exsiccandus (Latin) comes from Latin exsicco, from Latin siccō, from Latin siccus, from Proto-Celtic siskʷos, from Proto-Indo-European sisku-.

Definitions

Step	Language	Word	Meaning
1	Latin	exsicco	I dry up; I empty
2	Latin	siccō	—
3	Latin	siccus	dry; sober; thirsty
4	Proto-Celtic	siskʷos	dry
5	Proto-Indo-European	sisku-	—

exsiccandus — Etymology, Origin & Word History | Etymology Explorer