Apparently from the same as H7826 through some obscure {idea} perhaps that of peeling off by concussion of sound; a scale or {shell} that {is} the aromatic mussel: - onycha.
From an unused root meaning to {peel} that {is} emaciate; the gull (as thin): - cuckoo.
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Exo 30:34¶ And the LORD said unto Moses, Take unto thee sweet spices, stacte, and onychaH7827, and galbanum; these sweet spices with pure frankincense: of each shall there be a like weight: