slog vs footslog

slog and footslog both are verbs.

Word	Noun	Adjective	Verb	Adverb
slog	No	No	Yes	No
footslog	No	No	Yes	No

As verbs, slog and footslog are synonyms defined as:

slog and footslog: walk heavily and firmly, as when weary, or through mud

Other synonyms of slog include pad, plod, tramp, trudge.

slog (verb)	footslog (verb)
strike heavily, especially with the fist or a bat	walk heavily and firmly, as when weary, or through mud
walk heavily and firmly, as when weary, or through mud
work doggedly or persistently