Where does “nonperiodical” come from?

nonperiodical (English) comes from English periodical, from English period, from Middle English periode, from Middle French periode, from Latin periodus, from Ancient Greek περίοδος, from Ancient Greek ὁδός, from Proto-Hellenic *hodós.

Ancestry of “nonperiodical”, step by step

nonperiodical traces back through two separate lines of ancestry.

via English periodical

StepLanguageWordMeaning
1EnglishperiodicalA publication issued regularly, but less...
2EnglishperiodA length of time; A period of time in history...
3Middle Englishperiode
4Middle Frenchperiode
5Latinperiodusa complete sentence; period; the circuit of the...
6Ancient Greekπερίοδοςgoing round in a circle, flank march;...
7Ancient Greekὁδόςthreshold; road, path, way; journey, trip,...
8Proto-Hellenic*hodós

via English non

StepLanguageWordMeaning
1EnglishnonObsolete form of none
2Frenchnonno; not; a no, a negative response
3Old Frenchnonno; not; Alternative form of nom
4Latinnōnnot
5Old Latinnoenum
6Proto-Indo-Europeanóynosone; single
Every word from Proto-Hellenic *hodósEvery word from Ancient Greek ὁδόςEvery word from Ancient Greek περίοδος
nonperiodical — Etymology, Origin & Word History | Etymology Explorer