slogs

noun

Periods of difficult, tiring, or monotonous work or effort.

"The project involved many long slogs."

verb

Works hard and persistently, often with great effort or difficulty.

"He slogs away at his studies every evening."

Thesaurus

Synonyms: tramp, trudge, plod, pad, footslog, swig, slug, plug away, peg away, keep one's nose to the grindstone, keep one's shoulder to the wheel