whether
UK: ˈweð.ər | US: ˈweð.ɚ
conj. used to introduce alternatives or possibilities (e.g., "I don't know whether to go or stay").
pron. archaic which of two (e.g., "Choose whether you will take the left or right path").
The word "whether" originates from Old English hwæþer, meaning "which of two." It combines the interrogative prefix wh- (seen in words like "what" and "which") with -ether, a variant of "either," reflecting a binary choice. Over time, its usage narrowed to introduce indirect questions or alternatives, losing its archaic pronominal function. The morpheme ether itself derives from Proto-Germanic aiwaz (meaning "ever" or "always"), emphasizing the duality of options.
She asked whether I preferred tea or coffee.
Whether it rains or shines, the event will proceed.
He debated whether to accept the job offer.
I wonder whether they’ll arrive on time.
Whether by accident or design, the plan succeeded.