Anything less than a penteconter would be useless, and that long hull would never survive the North Atlantic.    From Wordnik.com.  [The Boat of a Million Years]

The half company is technically called a pentecostys, and a quarter company an enomoty, and the officers in charge of them respectively penteconter and enomotarch.    From Wordnik.com.  [Anabasis] Reference

The penteconter consequently had gained fast upon them.    From Wordnik.com.  [A Victor of Salamis] Reference

It was impossible to continue the simple scheme of the penteconter.    From Wordnik.com.  [A Day in Old Athens; a Picture of Athenian Life] Reference

The penteconter and her prize had long since faded below the horizon.    From Wordnik.com.  [A Victor of Salamis] Reference

Set them by the boat mast, so the sail can hide our pretty deed from the penteconter.    From Wordnik.com.  [A Victor of Salamis] Reference

“The penteconter is four furlongs away!” shrieked a sailor, growing gray under his dark skin.    From Wordnik.com.  [A Victor of Salamis] Reference

Some of these island contingents contained a type of ship different from the triremes, the penteconter.    From Wordnik.com.  [A History of Sea Power] Reference

Now as the penteconter was casting off, again he came to view, and the shout that greeted him was not of fear this time, but wonder and delight.    From Wordnik.com.  [A Victor of Salamis] Reference

The trireme, pulling only one of her banks, was dropping behind, her navarch leaving the tiring chase to the penteconter, but the latter hung on doggedly.    From Wordnik.com.  [A Victor of Salamis] Reference

At the end of an hour their pursuers could be distinguished, — a tall trireme behind, but closer, pulling more rapidly, a penteconter, a slim scouting galley working fifty oars in a single bank.    From Wordnik.com.  [A Victor of Salamis] Reference

Lars’s clamour could surely be heard on the penteconter.    From Wordnik.com.  [A Victor of Salamis] Reference

If they live when the penteconter comes, it’s not prison but Sheol that’s waiting.    From Wordnik.com.  [A Victor of Salamis] Reference

A pentecostys, and a quarter company an enomoty, and the officers in charge of them respectively penteconter and enomotarch.    From Wordnik.com.  [Anabasis] Reference

They had taken from the penteconter all her spare rowers, and to make the great ship bound over the steel-gray deep was children’s play.    From Wordnik.com.  [A Victor of Salamis] Reference

But a little later the gap betwixt the sea-mouse and the penteconter had so dwindled that even the master’s inborn thrift began to yield to prudence.    From Wordnik.com.  [A Victor of Salamis] Reference

“Sing, sing, pretty Pisinoë, sweetest of the sirens,” tossed the fishmonger, playing his part at Glaucon’s side; “lure that dear penteconter a little nearer.    From Wordnik.com.  [A Victor of Salamis] Reference

“Heaven speed you!” shouted from the penteconter.    From Wordnik.com.  [A Victor of Salamis] Reference