Whilst

//waɪlst// adv, conj

Definitions

Adverb
  1. 1
    Often preceded by the: During the time; meanwhile. not-comparable

    "Nay, I prethee put on this gown, & this beard, make him beleeue thou art ſir Topas the Curate, doe it quickly. Ile call ſir Toby the whilſt."

Conjunction
  1. 1
    Synonym of while.; During the whole, or until the end, of the time that; as long as, at the same time. Commonwealth, Ireland, UK, literary, rare

    "Drivers must switch off engines whilst on stand."

  2. 2
    Synonym of while.; Within, or before the end, of the time that. Commonwealth, Ireland, UK, literary, rare

    "[P]ray, step down to the cellar and fetch us a bottle of the Burgundy, 1678—it is the fourth bin from the right-hand turn—And I say, Craigie—you may fetch up half-a-dozen whilst you are about it—Egad, we'll make a night on't."

  3. 3
    Synonym of while.; Although; in contrast; whereas. Commonwealth, Ireland, UK, literary, rare

    "His company must do his minions grace, / Whil'ſt I at home ſtarue for a merrie looke: / Hath homelie age th'alluring beauty tooke / From my poore cheeke?"

  4. 4
    Synonym of while.; Besides; in addition. Commonwealth, Ireland, UK, literary, rare

    "Modern engine sheds of advanced design have also been built at Radyr, Abercynon, and elsewhere, whilst other depots have been remodelled and re-equipped."

  5. 5
    Synonym of while.; Only if; provided that; as long as; so long as. Commonwealth, Ireland, UK, literary, rare

Etymology

Etymology 1

From Late Middle English whilst, whilest, qwhilste (Northern England), quilest (Northwest Midlands) [and other forms], from whiles (“during the time that, while; only so long as; provided that; because, since; until”) + -t (excrescent suffix, perhaps due to a combination of -(e)s and the following word the, or influenced by the superlative suffix -est). Whiles is derived from whiles (“period of time, a while”, noun) (probably from the second element of adverbs and conjunctions like otherwhiles and somewhiles), from while (“period of time, a while”, noun) + -s (suffix forming adverbs of manner, space, and time); and while is from Old English hwīl (“period of time, a while”), ultimately from Proto-Germanic *hwīlō (“period of time, a while; period of rest, break, pause”), from Proto-Indo-European *kʷyeh₁- (“to rest; peace, rest”). The English word can be analysed as whiles + -t (excrescent suffix appended to words suffixed with -s). cognates * West Frisian wylst (“whilst”)

Etymology 2

From Late Middle English whilst, whilest, qwhilste (Northern England), quilest (Northwest Midlands) [and other forms], from whiles (“during the time that, while; only so long as; provided that; because, since; until”) + -t (excrescent suffix, perhaps due to a combination of -(e)s and the following word the, or influenced by the superlative suffix -est). Whiles is derived from whiles (“period of time, a while”, noun) (probably from the second element of adverbs and conjunctions like otherwhiles and somewhiles), from while (“period of time, a while”, noun) + -s (suffix forming adverbs of manner, space, and time); and while is from Old English hwīl (“period of time, a while”), ultimately from Proto-Germanic *hwīlō (“period of time, a while; period of rest, break, pause”), from Proto-Indo-European *kʷyeh₁- (“to rest; peace, rest”). The English word can be analysed as whiles + -t (excrescent suffix appended to words suffixed with -s). cognates * West Frisian wylst (“whilst”)

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