tedium
UK: ˈtiː.di.əm | US: ˈtiː.di.əm
n. the state of being tedious; boredom or lack of interest caused by monotony or repetition.
tedium = ted<bore> + ium<noun suffix>
- ted (from Latin taedēre, meaning "to bore" or "to weary")
 - ium (a Latin-derived suffix forming abstract nouns, often indicating a state or condition)
 
Etymology Origin:
The word tedium traces back to the Latin taedium ("weariness, disgust"), derived from taedēre ("to bore"). The root ted- reflects the core idea of wearisomeness, while -ium transforms it into a noun describing the state of being bored. Over time, tedium evolved in English to specifically denote the dullness or monotony that induces boredom.
The endless paperwork filled her with a sense of tedium.
He struggled to stay awake during the lecture, overcome by tedium.
Repetitive tasks often lead to tedium in the workplace.
The tedium of the long car ride made the children restless.
She sought creative hobbies to escape the tedium of daily routines.