Where does “nonholiday” come from?

nonholiday (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.

nonholiday (English): A day that is not a holiday; a working day

Definitions

A day that is not a holiday; a working day

Ancestry of “nonholiday”, step by step

nonholiday 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 Holiday

Step	Language	Word	Meaning
1	English	Holiday	The holiday season or Christmas season, especially when paired with a year
2	Middle English	halyday	A religious holiday or celebration
3	Old English	hāliġdæġ	holy day, Sabbath

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