In Latin and Greek poetry, correption (, "a shortening") is the shortening of a long vowel at the end of one word before a vowel at the beginning of the next. Vowels next to each other in neighboring words are in hiatus. Homer uses correption in dactylic hexameter: Here the sequence η ε in bold must be pronounced as ε ε to preserve the long—short—short syllable weight sequence of a dactyl. Thus, the scansion of the second line is thus: πλαγχ θε, ε | πει Τροι | η ςι ε | ρον πτο λι | εθ ρο νε | περ σε

Attic

Typically, in Homeric meter, a syllable is scanned long or "closed" when a vowel is followed by two or more consonants. However, in Attic Greek, a short vowel followed by a plosive and a liquid consonant or nasal stop remains a short or "open" syllable. This is called Attic correption, sometime known by its Latin name correptio Attica. Therefore, the first syllable of a word like δᾰ́κρυ could be scanned as "δά | κρυ" (open/short), exhibiting Attic correption, or as "δάκ | ρυ" (closed/long), in keeping with the conventions of Homeric verse.