Where does “modalis” come from?

modalis (Latin) comes from Latin modus, from Proto-Indo-European mēd-, from Proto-Indo-European med- — to measure; to give advice; healing.

modalis (Latin): pertaining to a mode

Definitions

Step	Language	Word	Meaning
1	Latin	modus	measure; bound, limit; manner , way , method
2	Proto-Indo-European	mēd-	—
3	Proto-Indo-European	med-	to measure; to give advice; healing

modalis — Etymology, Origin & Word History | Etymology Explorer