different between dodad vs doodad

English

Apparently from doodad, with spelling influenced by do.

dodad (plural dodads)

Unknown; attested since the 1880s. Compare earlier daud (“a piece of something”), later doohickey (“a thing (whose name one cannot recall)”).

doodad (plural doodads)

A thing (used in a vague way to refer to something whose name one cannot recall); especially an unspecified gadget, device, or part.
My mom has a clever doodad for peeling oranges.

Oxford English Dictionary, 1884–1928, and First Supplement, 1933.
“doodad”, in Merriam–Webster Online Dictionary, (Please provide a date or year).
Douglas Harper (2001–2021) , “doodad”, in Online Etymology Dictionary

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