The term 'trudge through' can be described by two four-letter words: SLOG and PLOD. To SLOG means to work hard and slowly, often with great effort and difficulty. PLOD, on the other hand, is to walk or move slowly and laboriously, usually with a heavy burden. Together, these two words describe the act of trudging through something, which is to make a slow, laborious journey or progress, often with great difficulty.