past
Meaning
Gone by in time and no longer existing.
Belonging to a former time.
The time before the present.
A person's earlier life or career, especially one considered to be secret or shameful.
Beyond in time; later than.
Usage
In past centuries, travel was much slower and more difficult.
She walked right past me without saying a word.
He is a man with a mysterious past.
Etymology
The word 'past' originates from the Middle English verb 'passen', meaning "to go by or beyond," which itself was borrowed from Old French 'passer'. The Old French term has its roots in the Vulgar Latin 'passāre', a derivative of the Latin noun 'passus', meaning "a step, pace." This Latin noun comes from the verb 'pandere', "to stretch, spread out," which is traceable to the Proto-Indo-European root 'pet-', meaning "to spread." The core logic of 'past' evolved from the concrete action of "passing by" or "going beyond" a point in space, which was then metaphorically extended to signify time that has "gone by" or events that are "beyond" the present moment. This semantic shift from spatial to temporal reference is a common pattern in language development.
Analysis
The word 'past' is a simplex form derived from the past participle of the Middle English verb 'passen'. It cannot be meaningfully segmented into smaller, independent morphemes within its current English spelling.