LAT

Lewis Short

ēchēa (noun N) = ἠχεῖα:
* Vessels to increase the sound of the actors' voices in a theatre, sounding-vessels, Vitr. 5, 5, 2 (1, 1, 9 written as Greek).
Charlton T. Lewis, Charles Short, A Latin Dictionary

TLL

s. TLL
Thesaurus Linguae Latinae
memory