Where does “nontrailing” come from?

nontrailing (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.

nontrailing (English): Not trailing

Definitions

  1. Not trailing

Ancestry of “nontrailing”, step by step

nontrailing traces back through two separate lines of ancestry.

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

via English trailing

StepLanguageWordMeaning
1EnglishtrailingThat converges in the direction of travel; That...
2EnglishtrailTo follow behind (someone or something); to tail (someone or something)
3Middle Englishtrailento hang loosely, drag along, drag away
4Old Frenchtraillerto tow; pick up the scent of a quarry
5Vulgar Latintragulareto drag
6Latintrāgulaa javelin or dart having a throwing-strap (āmentum)
Every word from Proto-Indo-European óynos