English Dictionary

iota subscript

noun

(Greek orthography) A small iota written below an alpha, eta or omega – e.g. in ᾠδή (ōidḗ) – representing a vocalic offglide that was pronounced in early Ancient Greek, but later became silent; invented in the Middle Ages in order to mark those vowels which would originally have had such an offglide.

The iota subscript is a diacritic mark used in some languages to indicate a specific pronunciation.

意味（1）

(Greek orthography) A small iota written below an alpha, eta or omega – e.g. in ᾠδή (ōidḗ) – representing a vocalic offglide that was pronounced in early Ancient Greek, but later became silent; invented in the Middle Ages in order to mark those vowels which would originally have had such an offglide.