[mimoon]

έποίηεσ의 원형은 ποιέω다. 그런데 이것이 ποιήσω έποίησα πεποίθηκα πεποίησα εποιήθην 등으로 변할 때 ε는 왜 η로 변하는가.

085.1 Contraction. Vowels brought together in inflection and word-formation are often contracted. The verb ποιέω appears in the lexicon but not in any text in that form: -έω always contracts to -ῶ. The final stem vowel ε, however, appears in the future tense of the same verb, ποιήσω, where it is lengthened to η before the tense formative σ (-ω is the personal ending in both cases). Contraction is a common phenomenon in Greek. For a schematic summary of contractions, s.

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