Where does “mīlitāns” come from?

mīlitāns (Latin) comes from Latin milito, from Latin mīles.

Ancestry of “mīlitāns”, step by step

Step	Language	Word	Meaning
1	Latin	milito	I am a soldier, I act as a soldier; I wage war
2	Latin	mīles	—

mīlitāns — Etymology, Origin & Word History | Etymology Explorer