the.com/toil
the daily grind that built every wonder and broke every back that built it
means To work long and hard at something exhausting, or the grueling labor itself.
from From Anglo-Norman 'toiler,' to dispute or strive, which traces back to Latin 'tudiculare,' to crush or pound (as in grinding olives in a press). The sense slid from 'struggle and contend' into 'wear yourself out laboring' — fittingly, the word's own root is about being crushed.
old rootFrom Latin tudiculare, meaning to crush or stir
and troubleShakespeare's witches knew toil rhymes with suffering
sweat mathThe pyramids took 20 years of relentless human labor
word twistOnce meant a struggle or fierce dispute, not work