Where does “malfari” come from?

malfari (Esperanto) comes from Esperanto fari, from French faire, from Middle French faire, from Old French faire, from Latin faciō, from Latin -torium, from Latin -tōrius, from Latin -tor.

malfari (Esperanto): to undo

Definitions

to undo

Ancestry of “malfari”, step by step

Step	Language	Word	Meaning
1	Esperanto	fari	to do; to make
2	French	faire	to do
3	Middle French	faire	to do; to make; to choose; to elect
4	Old French	faire	to do
5	Latin	faciō	to do
6	Latin	-torium	nominative neuter singular of -tōrius; accusative...
7	Latin	-tōrius	ory
8	Latin	-tor	-er
9	Proto-Italic	-tōr	Forms agent nouns to verb stems
10	Proto-Indo-European	-tōr	Derives agent nouns from verbs, denoting someone...
11	Proto-Indo-European	-tor-s	—

Every word from Proto-Indo-European -tor-s →Every word from Latin -torium →Every word from Latin -tor →