dastard (n.)
coward, sissy, runaway, traitor
1H6 I.ii.23 [Charles to all, of his forces] Dogs! Cowards! Dastards!
1H6 IV.i.19 [Talbot to all, of Falstaff] This dastard ... / Like to a trusty squire did run away
2H6 IV.viii.26 [Cade to rebels] you are all recreants and dastards
3H6 II.ii.114 [Richard to and of Clifford] like a dastard and a treacherous coward
R2 I.i.190 [Bolingbroke to King Richard, of Mowbray] this outdared dastard