Where does “nape” come from?

I appreciate the detailed instructions, but I notice a significant problem: the etymological chain provided (napalm → naphthenic → naphthene → naphtha → Latin -icus → PIE -kos) does not lead to the headword "nape." This chain traces words related to naphtha (a flammable liquid), which shares no established etymology with "nape" (the back of the neck). These are distinct etymological histories. To write an accurate one-sentence origin summary for "nape," I would need the correct etymological chain showing how nape developed through earlier language stages. Could you provide the correct chain for "nape," or clarify if there's been a mix-up with which headword this chain belongs to?

nape (English): The back part of the neck; The part of a fish or...

Definitions

  1. The back part of the neck; The part of a fish or...

Ancestry of “nape”, step by step

nape traces back through 3 separate lines of ancestry.

via English napalm

StepLanguageWordMeaning
1EnglishnapalmA highly flammable, viscous substance, designed...
2EnglishnaphthenicOf, pertaining to, or derived from a naphthene
3English-icUsed to form adjectives from nouns with the...
4EnglishimageAn optical or other representation of a real...
5Frenchimagepicture, image; frame; first-person singular...
6Portugueseimagemimage; picture; figure; image; image; face
7Spanishimagenimage
8Italianimmagineimage; imago
9Latinimāginem
10Latinim-Alternative form of in-; form of "in"; in
11Latinīn-un-, non-, not
12Latinînin, at, on, upon, from (space)
13Latinenlookǃ beholdǃ; reallyǃ?; come onǃ
14Proto-Italicenin
15Proto-Indo-Europeanh₁énin

via Old French hanap

StepLanguageWordMeaning
1Old Frenchhanaphanap goblet
2Medieval Latinhanappuscup, goblet
3Frankishhnappcup, bowl, basin; cup, bowl; bowl, cup
4Proto-Germanichnappazbowl; cup

via Middle English nape

StepLanguageWordMeaning
1Middle EnglishnapeThe nape; the neck's rear; The nape of a fish;...
2Old Frenchnapetable cloth
3Medieval Latinnappanapkin
4Latinmappanapkin; starting signal; map

Words derived from “nape

Every word from Proto-Indo-European h₁én
nape — Etymology, Origin & Word History | Etymology Explorer