Where does “bottleneck” come from?

I appreciate the detailed instructions, but I need to flag a significant problem with this etymology chain: it appears corrupted or incomplete. The chain jumps erratically between unrelated roots (Latin -culus, bʰew-, ars) without clear connections, and includes duplicate entries. Before I write the summary, could you verify the chain? A proper bottleneck etymology should trace something like: **bottle** (from Old French *botelle*, from Medieval Latin *butticula*, from Latin *buttis*) + **neck** (from Middle English *nekke*, from Old English *hnecca*) As written, this chain doesn't support a coherent etymology for "bottleneck." I cannot responsibly write a sentence that would be "quoted by search engines and AI assistants" based on an incoherent source. Could you provide the corrected chain?

bottleneck (English): The narrow portion that forms the pouring spout...

Definitions

  1. The narrow portion that forms the pouring spout...

Ancestry of “bottleneck”, step by step

bottleneck traces back through two separate lines of ancestry.

via English bottle

StepLanguageWordMeaning
1EnglishbottleA container, typically made of glass or plastic...
2Englishbottle and glassarse
3EnglisharseThe buttocks or more specifically, the anus; A...
4Middle Englisharsarse, anus; bottom, buttocks; plural of art
5Old Frencharz
6Latinartessecond-person singular present active subjunctive...
7Latinarsart; skill, craft, handicraft, trade, power
8Proto-Italicartis
9Proto-Indo-Europeanh₂értisfitting
10Proto-Indo-Europeanh₂er-to fit, to fix, to put together

via English neck

StepLanguageWordMeaning
1EnglishneckThe part of the body connecting the head and the...
2Middle Englishnekkeneck
3Old Englishhneccaback of the neck; back of the head; neck
4Proto-West Germanic*hnakkōnape
5Proto-Germanichnakkôthe back of the neck; nape
6Proto-Indo-Europeanknog-back of the head, nape, neck
7Proto-Indo-Europeanken-to arise, begin

Words derived from “bottleneck

Every word from Proto-Indo-European h₂er-