سُوَادٌ

Secret speech with another; as also سِوَادٌ: (M, K, TA:) each a subst. from سَاوَدَهُ, according to A'Obeyd: (M, TA:) but [ISd says,] in my opinion the latter is the verbal noun of سَاوَدَ, [and as such it has been mentioned above, (see 3,)] and the former is the simple subst., the two words being like مُزَاحٌ and مِزَاحٌ: (M:) As disallowed the former, but it is authorized by AO and others. (TA.)

Also A certain disease incident to sheep or goats. (K.)

And A certain disease incident to man; (K;) a pain that attacks the liver, in consequence of eating dates, and that sometimes, or often, kills. (M, TA.)

And A yellowness in the complexion, and a greenness (خُضْرَة [apparently here meaning a blackish hue inclining to greenness]) in the nail, (K, TA,) incident to people from [drinking] salt water. (TA.)