Where does “ekstremis” come from?

ekstremis (Indonesian) comes from Dutch extremist, from Dutch extreem, from French extrême, from Middle French extreme, from Latin extrēmus, from Proto-Italic eksterisemos.

ekstremis (Indonesian): extremist (person who holds extreme views)

Definitions

extremist (person who holds extreme views)

Ancestry of “ekstremis”, step by step

Step	Language	Word	Meaning
1	Dutch	extremist	extremist
2	Dutch	extreem	extreme; extremely
3	French	extrême	extreme
4	Middle French	extreme	extreme
5	Latin	extrēmus	rear
6	Proto-Italic	eksterisemos	—

Every word from Proto-Italic eksterisemos →Every word from Latin extrēmus →Every word from Middle French extreme →