More prone to causing or experiencing headaches; a comparative form meaning increasingly painful in the head or causing mental distress.
From 'headache' (Old English 'heafod' + ache from Old Norse 'oki') plus comparative suffix '-er'. The compound 'headache' originally meant physical head pain but evolved to mean any troublesome problem.
The word 'headache' has been used metaphorically for problems and difficulties since the 1500s—showing how our bodies provide the metaphors we use to describe abstract frustrations!
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