sennight
/ˈsɛnaɪt/
"sennight" is a 8-letter English headword indexed on PlainSpell.
The verdict
“sennight” is uncommon English (outside the top frequency list), classed as a noun. The kind of spelling people second-guess.
- Unranked
- below top-frequency English
- 8
- letters
According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - A period of seven consecutive days and nights; a week.
Corpus desk
Index EN-sennight · sennight · English
sennight · unranked · 0 variants · 0 confusables
- FREQ-UNRANKED Unranked
- LEN-LONG 8 letters
- VOW-2 2 vowels
- CONFUS-0 No pairs
- VAR-0 0 variants
- BOOK-THIN "S" thin
- PHOTO-UNK Peer pending
Read with this headword: Spelling guide for this pattern
Desk codes from Wiktionary headword shape, FrequencyWords rank tier, confusable-pair count, generated misspelling depth, letter-cohort book size, and photo-finish peer. Not a difficulty grade.
| Property | Value |
|---|---|
| Headword | sennight |
| Language | English |
| Part of speech | Noun |
| IPA | /ˈsɛnaɪt/ |
| Letters | 8 |
| Misspellings tracked | 0 |
| Confusable pairs | 0 |
| Source | Wiktionary (kaikki.org) |
Long-tail rank of “sennight” in English
Rare enough to double-check
sennight is uncommon English outside the top frequency list, classed as anoun, transcribed /ˈsɛnaɪt/. Rarity is why readers land here mid-draft. 4 senses are on record.
sennight doesn't appear in our generated misspelling index, a straightforward case of a spelling with little room for common typos. Our confusable-pair dataset has no match for it, since no other headword is close enough in sound or shape to pair with it.
Etymologically, the entry records: From Middle English senight, senyght, sinight (“seven days or nights, a week”) [and other forms], a shortened form of seven-night, sevenight, sevenyght [and other forms], from Late Old English seofeniht (compare seofonnihte (“seven days old; seven days long… The correct English form is sennight, spelled S-E-N-N-I-G-H-T.
Definition
- 1A period of seven consecutive days and nights; a week.
- 2Preceded by a specified day such as Sunday, today, or yesterday: a week from (either before or after) the specified day.
- 3Preceded by a specified day and come: a week after the specified day.
- 4Preceded by a specified day and gone or was: a week before the specified day.
Recorded use
Wiktionary examplesThese source excerpts show how sennight appears in context. They illustrate usage; the definition above remains the entry’s reference meaning.
I dranke not this sennet / A draught to my pay; / Elynour, I thé pray, / Of thyne ale let vs assay, […]
Marry he trots hard vvith a yong maid, betvveen the contract of her marriage, and the day it is ſolemnizd: if the interim be but a ſennight, Times pace is ſo hard, that it ſeemes the length of ſeuen yeare.
Etymology
From Middle English senight, senyght, sinight (“seven days or nights, a week”) [and other forms], a shortened form of seven-night, sevenight, sevenyght [and other forms], from Late Old English seofeniht (compare seofonnihte (“seven days old; seven days long”, adjective)), from seofon (“seven”) (ultimately from Proto-Indo-European *septḿ̥ (“seven”)) + niht (“night; day (when computing spans of time)”) (ultimately from Proto-Indo-European *nókʷts (“night”)). Doublet of sevennight.
Definitions, pronunciation, and etymology for this entry are drawn from Wiktionary via the kaikki.org structured extract (CC BY-SA). See the methodology for how each field is sourced and updated.