διπλάσιον
From LSJ
τοῦ δὲ πολέμου οἱ καιροὶ οὐ μενετοί → in war, opportunities won't wait | the chances of war will not wait (Thucydides 1.142.2)
Russian (Dvoretsky)
διπλάσιον: ион. διπλήσιον τό двойное количество, двойная сумма Her., Arst., Theocr.