Webster's Revised Unabridged Dictionary · 1913

Grabble

Grabble , intransitive verb

[Freq. of grab; compare Dutch grabbelen.]

1.
To grope; to feel with the hands.
He puts his hands into his pockets, and keeps a grabbling and fumbling. — Selden
2.
To lie prostrate on the belly; to sprawl on the ground; to grovel. — Ainsworth