Where does “wisher” come from?

I need to trace this chain carefully, but I notice some significant problems with the etymology provided. The chain given (English wish → Chinese 兒 → Old French -er → Latin -are → Latin -arius → Proto-Indo-European wun- → Proto-Italic -os) doesn't form a coherent linguistic descent for "wisher." Chinese 兒 (meaning "child/son") has no historical connection to English "wish." Old French "-er" is a verbal suffix, not a source for the English root "wish." And the chain mixes root morphemes with suffixes inconsistently. A legitimate etymology of "wisher" would be: English "wish" (verb) + English "-er" (agent noun suffix). The verb "wish" itself comes from Old English "wyscan," which traces to Proto-Germanic and Proto-Indo-European roots—but none of this matches the chain provided.

wisher (English): Someone who makes a wish

Definitions

  1. Someone who makes a wish

Ancestry of “wisher”, step by step

StepLanguageWordMeaning
1English-erA person or thing that does an action indicated...
2Middle English-eragentive suffix; agent noun suffix
3Old French-erAlternative form of -ier, verbal suffix;...
4Latin-ārefirst conjugation
5Proto-Italic-āōForms primarily denominative verbs
6Proto-Indo-European-eh₂yétiCreates iterative/ frequentative/ intensive...
7Proto-Indo-European-yétiCreates intransitive, often deponent,...
8Proto-Indo-Europeanyé-
9Chichewaiyehe, she

Words derived from “wisher

Every word from Chichewa iyeEvery word from English -erEvery word from Proto-Indo-European -yéti