tettix
A cicada, especially in Greece.
[T]he Tettix or Cicada in the day time is extremely troubleſome. It is a brown inſect reſembling a chafer, with wings much longer than its body, and thin like thoſe of a fly. […] Dionyſius of Syracuſe ſignified his reſolution to burn and lay waſte the territory of a people, with whom he had a quarrel, when he ſaid, that, if they refuſed to comply with his demands, their Tettixes ſhould ſing on the ground.
Where it comes from
From Ancient Greek τέττιξ (téttix), or perhaps a modern Greek descendant thereof.
Adapted from the Wiktionary entry tettix (CC BY-SA 4.0).