You probably say “between” a dozen times a day without thinking about it; its older twin “betwixt” shares the same Old English family tree, but Merriam-Webster (dictionary publisher) now describes it as rare and old-fashioned, kept alive mainly by poetry and the phrase “betwixt and between” (Merriam-Webster (dictionary publisher)). The gap between the two is a small case study in how English chooses one word and lets another drift into the margins.

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First recorded usage: circa 1200 (Middle English betwixen) · Word class: Preposition / Adverb · Modern frequency: Rare (0.1 occurrences per million words in COCA) · Shakespeare usage count: Over 30 instances in plays

Quick snapshot

Collins lists betwixt as archaic except in the phrase “betwixt and between” (Collins English Dictionary). Oxford Learner’s Dictionaries labels “betwixt and between” old-fashioned — a middle position where neither side fully applies (Oxford Learner’s Dictionaries).

Dictionary.com marks betwixt as archaic when it stands alone, even though the idiom stays current (Dictionary.com (online dictionary)).

Old English used betwux and betweox (betwixt) alongside betwēonum (between) as synonyms (Grammarphobia).

Modern dictionaries still list betwixt, marked literary or archaic (Wiktionary (collaborative dictionary)). Online dictionaries maintain a live entry for betwixt, labeled literary or archaic (Wiktionary (collaborative dictionary)).

Between: the standard modern preposition

Cambridge English Dictionary defines between as the standard preposition meaning “in or into the space that separates” places, people, objects, or times. Both words are built around the idea of two: between’s Old English ancestor betwēonum literally means “by the two, near both” (Wiktionary). Middle English recorded forms like betwixen appear as the language settled into its modern shape. Between works as a preposition and an adverb: “the gap between the shelves,” “weeks in between.”

Bottom line: Betwixt is a valid word, not a typo — but it signals “old” everywhere it appears.

How to use betwixt in a sentence?

Betwixt and between were synonyms from the start: Old English used betwux and betweox alongside betwēonum, a pairing recorded in older English (Grammarphobia). The Middle English form betwixen appears in records as the language moved toward its modern spelling. Dictionary label: old-fashioned, archaic, literary — but never obsolete. It’s labeled old-fashioned or archaic, but it’s a living entry, not a ghost word.

Shakespeare used betwixt across his plays, proof that the word was ordinary enough for a working playwright even if it sounds museum-like now.

The upshot

Betwixt is a working word with a narrow job: it signals “old.” It has been uncommon since the late 1600s, so every modern use is a costume change — effective.

What does the phrase ‘betwixt and between’ mean?

Merriam-Webster (dictionary publisher) calls “betwixt and between” an established redundancy — a pairing of two near-synonyms that settled into common use rather than fading away. Word Histories (etymology blog) traces the expression to a middling position — not fully or properly either of two states.

“He was betwixt and between about relocating — half ready, half rooted.”

Why this matters

One phrase saved the word.

Betwixt vs. between: a side-by-side comparison

Betwixt meaning an intermediate position
Between meaning In or into the space that separates (Cambridge English Dictionary)
Betwixt register Literary or archaic
Between register Standard, neutral, everyday (Cambridge English Dictionary)
Betwixt frequency An archaism still recognized (Grammarist (usage blog))
Between frequency Very common

Six comparisons, one pattern: the words share a job, but time split them into different registers.

Evidence from independent sources

  • Betwixt is still a listed word in modern dictionaries, marked old-fashioned or archaic (Oxford Learner’s Dictionaries).
  • The phrase “betwixt and between” is an established idiom meaning an intermediate position (Collins English Dictionary).
  • The first Oxford English Dictionary citation for “betwixt and between” is from 1832, in Frederick Marryat’s Newton Forster (Grammarphobia).

Reference quotes

“Betwixt is old-fashioned sounding, but a close cousin of between.”

— Merriam-Webster, Word of the Day (dictionary publisher)

— Collins English Dictionary, entry for betwixt

The split between betwixt and between is a small lesson in how English prunes its garden. Both words grew from the same Old English root, both described the same gap between two things, and then centuries of habit picked one and let the other drift into poetry.

What part of speech is ‘betwixt’?

Betwixt is a preposition and an adverb, just like between: you can write “betwixt the two doors” or “the months betwixt.”

Is ‘betwixt’ still taught in schools?

It isn’t core vocabulary, but students still meet it in Shakespeare and older poetry — the word appears more than 30 times in his plays — and in the phrase “betwixt and between.”

What is the difference between ‘betwixt’ and ‘among’?

Betwixt is the archaic twin of between, describing a space separating two things. Among and amid sit in the same “in the middle” family, though each has its own grammatical territory. Betwixt became uncommon after the late 1600s while between carried on as the standard preposition, and the phrase “betwixt and between” preserved the older word in everyday idiomatic use.