Source : Webster's Revised Unabridged Dictionary (1913)

Batful \Bat"ful\, a. [Icel. bati amelioration, batna to grow
   better; akin to AS. bet better. Goth. ga-batnan to profit.
   ?255. Cf. {Batten}, v. i., {Better}.]
   Rich; fertile. [Obs.] ``Batful valleys.'' --Drayton.