Where does “nonsushi” come from?

nonsushi (English) comes from English non, from French non, from Old French non, from Latin nōn, from Old Latin noenum, from Proto-Indo-European óynos — one; single.

nonsushi (English): Not containing sushi

Definitions

Not containing sushi

Ancestry of “nonsushi”, step by step

nonsushi traces back through two separate lines of ancestry.

via English non

Step	Language	Word	Meaning
1	English	non	Obsolete form of none
2	French	non	no; not; a no, a negative response
3	Old French	non	no; not; Alternative form of nom
4	Latin	nōn	not
5	Old Latin	noenum	—
6	Proto-Indo-European	óynos	one; single

via English Sushi

Step	Language	Word	Meaning
1	English	Sushi	A person who typifies a mixture of Shiism and...
2	Japanese	寿司	sushi: vinegared rice served with fish or...
3	Japanese	酸し	sour; tasting of vinegar
4	Japanese	し	Conjunctive particle. Follows items in a list of...
5	Middle Chinese	氏	—

Every word from Proto-Indo-European óynos →Every word from Old Latin noenum →Every word from Latin nōn →