from The American Heritage® Dictionary of the English Language, 5th Edition.

  • noun A week.

from The Century Dictionary.

  • noun The space of seven nights and days; a week.

from the GNU version of the Collaborative International Dictionary of English.

  • noun Archaic. The space of seven nights and days; a week.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • noun archaic A period of seven nights; a week.
  • adverb archaic After a sennight has passed.


from The American Heritage® Dictionary of the English Language, 4th Edition

[Middle English senight, contraction of seveniht, from Old English seofon nihta, seven nights : seofon, seven; see seven + nihta, pl. of niht, night; see night.]


  • '_a Month_,' and perhaps 'sennight' is better than 'week.'

    Letters of Edward FitzGerald in two volumes, Vol. 1

  • And it wasn't much more than a sennight since she'd called upon the Elves to lend power to the forging of the keystone she'd sent off with Kellen.

    Tran Siberian

  • Today's emergency Council session could only mean that the Council was meeting to review the reports from the field, admit what each of them had known a sennight ago, and fix the blame.

    Tran Siberian

  • It was already late summer, and in a sennight-a fortnight at the most-he would have to turn eastward again, lest winter catch him far from Nerendale's comforts.

    Tran Siberian

  • At last, after a whole sennight of fruitless searching, he set the book he'd been looking at back in its place on the shelf with a disgusted sigh.

    Tran Siberian

  • He thought of the dryad's lightning-struck tree back in the Wildwood, and what would have happened if the Wild-wood had been as tinder-dry as the country he and Idalia had ridden through for the last sennight.

    Tran Siberian

  • Even more fortunately, he and Idalia had been in Sentarshadeen less than a sennight, and his bedroll (and other camping equipment) were still tucked away in the corners of his room, along with his share of the traveling packs.

    Tran Siberian

  • "WILD Magic is especially good for healing-almost anything is a Healing Spell when you come right down to it," Idalia told him a sennight after his arrival, as she used Wild Magic to heal the ankle he'd strained while fishing in a rocky-strewn brook, explaining to him that she was also going to strengthen it so that he wouldn't repeat the injury.

    Tran Siberian

  • But as one sennight, then two, passed without sign of him, or Kellen, or Shalkan, her hope for their survival dimmed.

    Tran Siberian

  • Idalia and Canderil spoke easily and companionably about people Kellen didn't know, very much as if they'd last seen each other a sennight ago instead of after an absence on Idalia's part of what must be several years.

    Tran Siberian


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  • A week('s time).

    "As for his marriage to the Lady Margaret, fixed though it was for this day sennight, the thing was so palpably absurd that he scarcely gave it a thought."

    - Orlando, Virginia Woolf.

    February 5, 2008

  • Half a fortnight.

    November 19, 2012