aitchbone
noun
Forms aitchbones aitch-bone H bone natch-bone
Synonyms
edgebone
Etymology
From rebracketing of "a nache-bone" to "an aitchbone". See natch, bone. Attested since the late 1400s, and initially also spelled hach- with a spurious h.
Webster’s 1913
Etymology [For nachebone. For loss of n, cf. Adder. See Natch.]
Sources: Wiktionary · Webster’s 1913 — from the Wiktionary entry “aitchbone”, CC BY-SA 4.0. Details