lit

The word 'lit' has a layered history. Its primary function is as the standard past tense and past participle of the verb 'to light', which traces back to Old English and the PIE root for brightness. The slang meanings emerged much later. The sense of being intoxicated likely evolved from the idea of being 'lit up' or stimulated by substances. The more recent, dominant meaning of something being exciting or excellent, particularly a party, is a semantic extension from the intoxication sense, or directly from the concept of a place being 'lit up' with energy and excitement. This evolution showcases how a simple verb form can absorb complex cultural connotations to become a vibrant piece of modern slang.

This word is a simplex form. As an adjective, it is a modern slang development from the verb 'light'. The verb 'light' originates from Old English 'līhtan' (to alight, descend, make light) and 'lēoht' (light, brightness), from Proto-Germanic leuhtaz, ultimately from the Proto-Indo-European root leuk- (light, brightness).