Liddell-Scott-Jones

λειχήν (leichēn) scabbed ^G:N-M

λειχήν, ῆνος, ὁ,

tree-moss, lichen, implied in [Refs 4th c.BC+]

__2 a kind of liver-wort, that grows on damp rocks, [Refs 1st c.AD+]; but ἵππειος λ., ={ἱππολειχήν}, [Refs 2nd c.BC+]
__3 a lichen-like eruption on the skin of animals, especially on the chin, mentagra, [LXX+5th c.BC+]; also, of the ground, blight, canker, [Refs 4th c.BC+]
__4 in horses, the normal callosity on foreleg, chestnut, [Refs 1st c.AD+] —In codices frequently written λιχήν.

_{LSJ Scripture Refs: LXX.Lev.21.20}