Where does “exultancy” come from?
exultancy (English) comes from Latin exsultantia, from Latin exsultans, from Latin exsultō, from Latin saltō, from Latin saliō, from Latin sāl, from Proto-Italic sāls, from Proto-Indo-European *sḗh₂l.
exultancy (English): exultance, exultation
Ancestry of “exultancy”, step by step