definition of
plod

[1] #1 plod v. [slog, footslog, trudge, pad, tramp] walk heavily and firmly, as when weary, or through mud; "Mules plodded in a circle around a grindstone". wn

[2] #2 plod n. [plodding] the act of walking with a slow heavy gait; "I could recognize his plod anywhere". wn