TN Ex4:6 :והא ידיה מצרעה‏ : all of a sudden his hand was leprous
See the entire entry for ṣrˁ vb. to become leprous

TN Ex4:6 :והא ידיה מצרעה כתלגא‏ :
See the entire entry for tleḡ, talgā n.m. snow