English

Two words for one thing: εφτά and επτά

Greek often keeps two words for the same thing: εφτά and επτά for seven, οχτώ and οκτώ for eight. The first of each pair is the living one, the second the bookish one. For example: “Η βδομάδα έχει εφτά μέρες” — There are seven days in a week. A rule from the Greek course: worked out on examples, not memorized as a wording.

Updated September 1, 2026 · Lingofly

How it works

Greek often keeps two words for the same thing: εφτά (eftá) and επτά (eptá) for seven, οχτώ (okhtó) and οκτώ (októ) for eight. The first of each pair is the living one, the second the bookish one.

History left it that way. Until 1976 a second written norm, pulled toward the ancient language, ran beside everyday speech. In the end the living speech became the language of the state.

The bookish words stayed on signs and in paperwork. ιχθυοπωλείο in a shop window and ψαράδικο in talk mean one thing — a fish shop.

So when a solemn word turns up where you expected a plain one, do not hunt for a dialect. It is most likely the bookish twin of a word you know. Speak the living one.

Table

Two words for one thing: εφτά and επτά
colloquialbookishmeaning
εφτάεπτάseven
οχτώοκτώeight
ψάριιχθύςfish
ψωμίάρτοςbread
νερόύδωρwater

By example

  • Η βδομάδα έχει εφτά μέρες
    i vdomáda ékhi eftá méres
    There are seven days in a week
  • Δουλεύω οχτώ ώρες
    dulévo okhtó óres
    I work eight hours
  • Το ψάρι είναι νόστιμο
    to psári íne nóstimo
    The fish is tasty

How the rule settles in your head

A rule is not memorized from an explanation. It is memorized from an attempt to use it and a mistake — that is why the app delivers it mixed in with words, not as a separate lesson: it resurfaces exactly where you forgot it.

Frequently asked

Two words for one thing: how does it work in Greek?

Greek often keeps two words for the same thing: εφτά and επτά for seven, οχτώ and οκτώ for eight. The first of each pair is the living one, the second the bookish one.

What does it look like in an example sentence Greek?

“Η βδομάδα έχει εφτά μέρες” (i vdomáda ékhi eftá méres) — There are seven days in a week. A rule is easier to test on sentences like this than to memorize as a wording: what surfaces in conversation is the sentence.

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