Where does “nigromauncy” come from?

nigromauncy (Middle English) comes from Old French nigromancie, from Medieval Latin nigromantia, from Latin necromantīa, from Ancient Greek νεκρομαντεία, from Ancient Greek μαντεία, from Ancient Greek -ῐ́ᾱ, from Proto-Indo-European -íh₂, from Proto-Indo-European -h₂ — Creates collective nouns, which refer to groups...

Ancestry of “nigromauncy”, step by step

nigromauncy traces back through two separate lines of ancestry.

via Old French nigromancie

StepLanguageWordMeaning
1Old Frenchnigromancienigromancy
2Medieval Latinnigromantia
3Latinnecromantīanecromancy
4Ancient Greekνεκρομαντείαnecromancy
5Ancient Greekμαντείαprophecy, divination, oracle; The power to...
6Ancient Greek-ῐ́ᾱ{{l|en|-ia}}; "suffix forming abstract feminine...
7Proto-Indo-European-íh₂
8Proto-Indo-European-h₂Creates collective nouns, which refer to groups...

via Latin nigromantia

StepLanguageWordMeaning
1Latinnigromantia
2Latinnecromantianecromancy
Every word from Proto-Indo-European -h₂Every word from Ancient Greek -ῐ́ᾱEvery word from Ancient Greek μαντεία