whilst

UK: waɪlst | US: waɪlst

Definition
  1. conj. meaning 1: during the time that; at the same time as (synonymous with "while")

  2. conj. meaning 2: although; whereas (archaic or formal usage)

Structure
whil <time>st <adverbial suffix>
Etymology

whilst = whil<time> + st<adverbial suffix>

  • whil<time>: Derived from Old English hwīl ("a period of time"), related to German Weile.
  • st<adverbial suffix>: A variant of the Old English suffix -es or -est, used to form adverbs (e.g., amongst, unbeknownst).

Etymology Origin:
"Whilst" evolved in Middle English as an adverbial form of "while," reinforced by the suffix -st (common in dialectal or archaic usage). It retains the core temporal meaning of "while" but is now primarily used in British English or formal contexts. The suffix -st adds no distinct semantic value but reflects older grammatical patterns.

Examples
  1. She read a book whilst waiting for the train.

  2. Whilst I understand your concern, I disagree with your approach.

  3. He remained silent whilst others argued.

  4. Whilst the project is ambitious, it is achievable.

  5. The cat slept whilst the dog played outside.