Plod v. i. [imp. & p. p. Plodded p. pr. & vb. n. Plodding.]
 1. To travel slowly but steadily; to trudge.
 2. To toil; to drudge; especially, to study laboriously and patiently. “Plodding schoolmen.”
 plod
      v : walk heavily and firmly, as when weary, or through mud;
          "Mules plodded in a circle around a grindstone" [syn: slog,
           footslog, trudge, pad, tramp]
      [also: plodding, plodded]
 plodded
      See plod