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boil

an aggravated ulcer, as in the case of Hezekiah (2 Kings 20:7; Isa. 38:21) or of the Egyptians (Exodus 9:9-11; Deut. 28:27, 35)

This word is translated “botch” in Deut. 28:27, 35.

It designates the disease of Job (2:7), which was probably the black leprosy.