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

Ancestry of “exsiccandus”, step by step

StepLanguageWordMeaning
1LatinexsiccoI dry up; I empty
2Latinsiccōto dry, drain, exhaust
3Latinsiccusdry; sober; thirsty
4Proto-Celticsiskʷosdry
5Proto-Indo-Europeansisku-—
Every word from Proto-Indo-European sisku- →Every word from Proto-Celtic siskʷos →Every word from Latin siccus →