Where does “nonnavigable” come from?

nonnavigable (English) comes from English navigable, from Middle French navigable, from Latin navigabilis, from Latin nāvigō, from Latin nāvis, from Proto-Italic naus, from German hinaus, from German aus — out, outward.

nonnavigable (English): Not navigable

Definitions

  1. Not navigable

Ancestry of “nonnavigable”, step by step

nonnavigable traces back through two separate lines of ancestry.

via English navigable

StepLanguageWordMeaning
1EnglishnavigableCapable of being navigated; deep enough and wide...
2Middle Frenchnavigable
3Latinnavigabilisnavigable
4Latinnāvigōto sail, navigate, seafare, embark
5Latinnāvisship, boat, vessel; a fleet in the plural
6Proto-Italicnaus
7Germanhinausout
8Germanausout; over; finished; done; up; off
9Old High Germanūzout
10Proto-West Germanic*ūtout, outward
11Proto-Germanicūtout, outward
12Proto-Indo-Europeanúdout, outward

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-Indo-European údEvery word from Proto-Germanic ūtEvery word from Proto-West Germanic *ūt