Where does “insolitement” come from?
insolitement (French) comes from French insolite, from Latin insolitus, from Latin solitus, from Latin soleō, from Latin sodeō, from Proto-Italic sweðēō, from Proto-Indo-European swe-dʰh₁-, from Proto-Indo-European dʰeh₁- — to do, put, place.
insolitement (French): unusually, strangely
Ancestry of “insolitement”, step by step