only

UK: ˈəʊnli | US: ˈoʊnli

Definition
  1. adj. being one or a single thing; sole

  2. adv. no more than; merely

  3. conj. except that; but

Structure
one <single>ly <adverbial suffix>
Etymology

only = one<single> + ly<adverbial suffix>

  • one: From Old English ān (meaning "one, single"), derived from Proto-Germanic ainaz. Retains its core meaning of singularity.
  • ly: A common Old English adverbial suffix (from -līce), used to form adverbs from adjectives.

Etymology Origin:
The word "only" originated as a combination of "one" (emphasizing singularity) and the adverbial suffix "-ly," which transformed the adjective into an adverb. Over time, it evolved to convey exclusivity ("no more than") and contrast ("except that"). The logic reflects a progression from literal singularity to abstract limitation or exception.

Examples
  1. She is the only person who knows the truth.

  2. He only ate half of his meal.

  3. I would help you, only I’m too busy right now.

  4. This offer is available only for a limited time.

  5. They live only a few miles away.