From The Collaborative International Dictionary of English v.0.48 [gcide]:
Tas \Tas\, n. [F.]
A heap. [Obs.] "The tas of bodies slain." --Chaucer.
[1913 Webster]
From The Collaborative International Dictionary of English v.0.48 [gcide]:
Tas \Tas\, v. t.
To tassel. [Obs.] "A purse of leather tassed with silk."
--Chaucer.
[1913 Webster]