Where does “extraordinarius” come from?

extraordinarius (Latin) comes from Latin ōrdinem, from Middle Low German orden, from Latin ōrdināre, from Latin ōrdō, from Proto-Italic ored(h)- — to arrange.

Ancestry of “extraordinarius”, step by step

Step	Language	Word	Meaning
1	Latin	ōrdinem	—
2	Middle Low German	orden	—
3	Latin	ōrdināre	—
4	Latin	ōrdō	—
5	Proto-Italic	ored(h)-	to arrange

Every word from Proto-Italic ored(h)- →

extraordinarius — Etymology, Origin & Word History | Etymology Explorer