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How words are made: -ση and -μα

Half of the unfamiliar Greek words you meet need not be learned. They can be taken apart: a root plus a suffix with one job. Here are the suffixes that turn a verb into the name of a deed. For example: “Η διόρθωση θα (tha) πάρει (pári) τρεις (tris) μέρες” (méres) — The fix will take three days. A rule from the Greek course: worked out on examples, not memorized as a wording.

Updated September 1, 2026 · Lingofly

How it works

Half of the unfamiliar Greek words you meet need not be learned. They can be taken apart: a root plus a suffix with one job. Here are the suffixes that turn a verb into the name of a deed.

A deed out of a verb — -ση (feminine) and -μα (neuter). διορθώνω (diorthóno) (to fix) → η διόρθωση (i diórthosi); ρυθμίζω (rithmízo) (to adjust) → η ρύθμιση; ραγίζω (to crack) → το ράγισμα (to ráyizma). The difference is thin: -ση leans to the doing, -μα to the mark it leaves.

Use this for reading, not for speaking. Recognizing η εγκατάσταση from εγκαθιστώ (to install) is safe; inventing a new word to the pattern is not.

Table

How words are made: -ση and -μα
suffixwhat it makesexample
-σηa deed out of a verbρυθμίζω (rithmízo) → η ρύθμιση
-μαthe mark of a deedραγίζω → το ράγισμα (to ráyizma)

By example

  • Η διόρθωση θα πάρει τρεις μέρες
    i diórthosi tha pári tris méres
    The fix will take three days

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

How words are made: how does it work in Greek?

Half of the unfamiliar Greek words you meet need not be learned. They can be taken apart: a root plus a suffix with one job. Here are the suffixes that turn a verb into the name of a deed.

What does it look like in a Greek example sentence?

“Η διόρθωση θα (tha) πάρει (pári) τρεις (tris) μέρες” (méres) (i diórthosi tha pári tris méres) — The fix will take three days. 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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