I. ˈskab noun
Etymology: Middle English, of Scandinavian origin; akin to Old Swedish skabbr scab; akin to Old English sceabb scab, Latin scabere to scratch — more at shave
Date: 13th century
1. : scabies of domestic animals
2. : a crust of hardened blood and serum over a wound
3.
a. : a contemptible person
b.
(1) : a worker who refuses to join a labor union
(2) : a union member who refuses to strike or returns to work before a strike has ended
(3) : a worker who accepts employment or replaces a union worker during a strike
(4) : one who works for less than union wages or on nonunion terms
4. : any of various bacterial or fungus diseases of plants characterized by crustaceous spots ; also : one of the spots
II. intransitive verb
( scabbed ; scab·bing )
Date: 1683
1. : to become covered with a scab
2. : to act as a scab