tedium

noun

1. the quality or state of being wearisome; irksomeness; tediousness.

noun

1. the state of being bored or the quality of being boring; monotony

n.1660s, from Latin taedium “weariness, disgust,” related to taedet “it is wearisome,” and to taedere “to weary.” Possible cognates are Old Church Slavonic tezo, Lithuanian tingiu “to be dull, be listless.”