From The Collaborative International Dictionary of English v.0.48:
Slabber \Slab"ber\, v. i. [imp. & p. p. Slabbered; p. pr. & vb. n. Slabbering.] [OE. slaberen; akin to LG. & D. slabbern, G. schlabbern, LG. & D. slabben, G. schlabben, Icel. slafra. Cf. Slaver, Slobber, Slubber.] To let saliva or some liquid fall from the mouth carelessly, like a child or an idiot; to drivel; to drool. [Written also slaver, and slobber.] [1913 Webster]
From The Collaborative International Dictionary of English v.0.48:
Slaver \Slav"er\, n. 1. A vessel engaged in the slave trade; a slave ship. [1913 Webster]
2. A person engaged in the purchase and sale of slaves; a slave merchant, or slave trader. [1913 Webster]
The slaver's hand was on the latch, He seemed in haste to go. --Longfellow. [1913 Webster]
From The Collaborative International Dictionary of English v.0.48:
Slaver \Slav"er\, v. i. [imp. & p. p. Slavered; p. pr. & vb. n. Slavering.] [Cf. Icel. slafra. See Slabber.] 1. To suffer spittle, etc., to run from the mouth. [1913 Webster]
2. To be besmeared with saliva. --Shak. [1913 Webster]
From The Collaborative International Dictionary of English v.0.48:
Slaver \Slav"er\, v. t. To smear with saliva issuing from the mouth; to defile with drivel; to slabber. [1913 Webster]
From The Collaborative International Dictionary of English v.0.48:
Slaver \Slav"er\, n. Saliva driveling from the mouth. [1913 Webster]
Of all mad creatures, if the learned are right, It is the slaver kills, and not the bite. --Pope. [1913 Webster]