Where does “nappy stacker” come from?

nappy stacker (English) comes from English nappy, from English NAP, from French napper, from French -er, from English -er, from Middle English -er, from Old French -er, from Latin -āre — he, she.

Ancestry of “nappy stacker”, step by step

nappy stacker traces back through two separate lines of ancestry.

via English nappy

StepLanguageWordMeaning
1EnglishnappyAn absorbent garment worn by a baby who does not...
2EnglishNAPAcronym of non-aggression principle; Acronym of...
3Frenchnapperto cover
4French-erForms infinitives of first-conjugation verbs
5English-erA person or thing that does an action indicated...
6Middle English-eragentive suffix; agent noun suffix
7Old French-erAlternative form of -ier, verbal suffix;...
8Latin-ārefirst conjugation
9Proto-Italic-āōForms primarily denominative verbs
10Proto-Indo-European-eh₂yétiCreates iterative/ frequentative/ intensive...
11Proto-Indo-European-yétiCreates intransitive, often deponent,...
12Proto-Indo-Europeanyé-
13Chichewaiyehe, she

via English stacker

StepLanguageWordMeaning
1EnglishstackerAn output bin in a document feeding or punch card...
2Englishstack"A pile."; A smokestack; "In computing."
3Dutchstapelpile; basis, foundation, pedestal; stockpile,...
4Middle Dutchstapelpillar; foundation; market; warehouse; market
5Old Dutchstapal
6Old Swedishstapul
7Proto-Germanicstapulazpillar, post; basis, foundation
8Proto-Indo-Europeanstebʰ‑to stand still
Every word from Chichewa iye
nappy stacker — Etymology, Origin & Word History | Etymology Explorer