Perispomenon

In Ancient Greek grammar, a perispomenon (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.

Examples:

• θεοῦ, theoû, "of a god", is a perispomenon
• πρᾶξις prâxis "business" is a properispomenon