جرب

جَرَبٌ أجرب جراب جرب [The mange, or scab; ] a certain disease, (A,) well known; (S, A, K;) accord. to the medical books, (Msb,) a gross humour, arising beneath the skin, from the mixture of the salt phlegm, (Msb, MF,) or the phlegm of the flesh, (so in a copy of the Msb,) with the blood, accompanied with pustules, and sometimes with emaciation, in consequence of its abundance; (Msb, MF;) or [ an eruption consisting of ] pustules upon the bodies of men and camels. (M, TA.) You say, أعْدَى مِنَ الجَرَبِ عِنْدَ العَرَبِ [ More transitive, or catching, than the mange, or scab, among the Arabs ]: (A, TA:) a proverb. (TA.) ― -b2- (assumed tropical:) Rust upon a sword. (K.) ― -b3- (tropical:) A resemblance of rust upon the inner side of the جَفْن [or eyelid ], (M, K,) sometimes covering the whole of it, and sometimes part of it. (M.) You say, بِأَجْفَانِهِ جَرَبٌ (tropical:) [ In his eyelids is ] a resemblance of rust upon their inner sides. (A.) ― -b4- (assumed tropical:) A vice, a fault, a defect, an imperfection, or a blemish. (IAar, K.)