Delve \Delve\v. t. [imp. & p. p. {Delved}; p. pr. & vb. n. {Delving}.] [AS. delfan to dig; akin to OS. bidelban to bury, D. delven to dig, MHG. telben, and possibly to E. dale. Cf. {Delf} a mine.] 1. To dig; to open (the ground) as with a spade. Delve of convenient depth your thrashing floor. --Dryden. 2. To dig into; to penetrate; to trace out; to fathom. I can not delve him to the root. --Shak.