frazzled

the word 'frazzled' is a relatively recent addition to english, emerging in the late 19th century. it is believed to be a blend of the now-obsolete english word 'faze' (to disturb) and the word 'fray', meaning to become worn at the edge. the initial sense pertained to frayed cloth or worn threads, which provided a powerful and tangible metaphor for a state of physical and mental exhaustion. this metaphorical extension from a material's condition to a human's emotional and physical state became dominant, solidifying the modern meaning of being completely drained or stressed.

this word is considered unsegmentable into meaningful morphemes based on its current english spelling and formation history.