Where does “paschalis” come from?

paschalis (Latin) comes from Latin Pascha, from Ancient Greek Πάσχα, from Aramaic פסחא, from Hebrew פֶּסַח — Passover.

Ancestry of “paschalis”, step by step

Step	Language	Word	Meaning
1	Latin	Pascha	—
2	Ancient Greek	Πάσχα	Easter
3	Aramaic	פסחא	—
4	Hebrew	פֶּסַח	Passover

paschalis — Etymology, Origin & Word History | Etymology Explorer