enough
UK[ɪˈnʌf]US[ɪˈnʌf]
det
As much or as many as required
pron
A sufficient amount or quantity
adv
To the required degree or extent; sufficiently
interj
Used to express that one is unwilling to tolerate any more of something undesirable
Etymology
The word 'enough' originates from the Old English 'genōg', which itself evolved from the Proto-Germanic 'ganōgaz', meaning 'sufficient'. This Germanic root is linked to the Proto-Indo-European 'h₂eh₂nóḱe', a form related to reaching or attaining. The semantic core of sufficiency or adequacy has remained remarkably stable from its ancient origins. The modern spelling and pronunciation crystallized in Middle English, shedding the initial 'g-' and solidifying the now-familiar '-ough' ending, a notorious but fixed English spelling pattern.
Analysis
The word 'enough' is a simplex word derived from Old English. It is not productively formed from separable morphemes in Modern English.
Examples
We have enough food for everyone at the party.
You've practiced enough for today; you should rest.
Enough! I don't want to hear another excuse.