Hoads etymology gives whilst as a derivation of whiles, an adverbial form of while.
While or whilst? While and whilst mean the same when we use them as conjunctions. They both mean during the time that something else happens, or in contrast with something else.
Whilst definition of whilst by The Free Dictionary
Whilst and while are two words with identical meaningsusually.
If youre british, you can use while or whilst interchangeably.
Whilst is a formal word which has the same meaning as while.
the word while primarily exists as an english noun, conjunction, and verb. As a conjunction or adverb, while is synonymous with whilst (chiefly british).
Whilst definition and meaning | Collins English Dictionary
conjunction whilst means the same as the conjunction while 1. Mainly british, formal, or literary cobuild advanced english dictionary.
Both while and whilst have been in the language for a very long time. While was in use in old english whilst is a middle english development of while. As conjunctions they are interchangeable in meaning, but whilst has not survived in standard american english.
Whilst and while are two spellings of the same word, which can be used as a conjunction or an adverb.