In Ancient Greek grammar, a perispomenon (Greek, Ancient (to 1453);: περισπώμενον) is a word with a high-low pitch contour on the last syllable, indicated in writing by a tilde diacritic or an inverted breve accent mark in native transcriptions with the Greek alphabet, or by a circumflex accent mark in transcriptions with the Latin alphabet. A properispomenon has the same kind of accent, but on the penultimate syllable.[1]
Examples:
Peri-spṓmenon means "pronounced with a circumflex",[2] the neuter of the present passive participle of peri-spáō "pronounce with a circumflex" (also "draw off").[3] Pro-peri-spṓmenon adds the prefix pró "before".[4] Greek, Modern (1453-);: περισπωμένη, perispomeni, is the Greek name for the accent marks (or) used above Greek letters, also known as Greek, Modern (1453-);: ὀξύβαρυς, oxýbarys, "high-low" or "acute-grave", and its original form as a circumflex accent was combining the acute and grave pitch accents occurring successively only in bimoraic syllables (with long vowels or diphthongs).