Survey: does "err" rhyme with "hair" or with "her"?

@Susan When a verb (to err is human) its like "hair". Just like you'd say "error" but without "or". When in quoted speech (err, can you repeat that?) It's like "her"

@PaulVargas The third lecture here "The Artistry of Genesis 22" reminded me of your question. (It raises the same question but, in typical Jewish fashion, answers only with more questions ..... which may do more justice to the text than any other answer. Regardless, an enlightening exposition.)