Where does “deltoïdien” come from?

deltoïdien (French) comes from French -ien, from Middle French -ien, from Old French -ien, from Latin -iānus, from Latin -ānus — Of or pertaining to; -ian.

deltoïdien (French): deltoid

Definitions

deltoid

Ancestry of “deltoïdien”, step by step

Step	Language	Word	Meaning
1	French	-ien	Denotes where something or someone is from; -ian;...
2	Middle French	-ien	-ian
3	Old French	-ien	-ian
4	Latin	-iānus	—
5	Latin	-ānus	Of or pertaining to; -ian

Every word from Latin -ānus →Every word from French -ien →Every word from Latin -iānus →