LIEUTENANT COMMANDER • FREE-TRANSLATOR.COM • Definition of Lieutenant commander

... the greater part of our men were alarmed by the recollection of their recent disaster, and Arbetio hesitated, thinking everything pregnant with danger. Upon this three tribunes at once sallied forth, Arintheus who was a lieutenant commander of the heavy troops, Seniauchus who commanded the cavalry of the Comites,[38] and Bappo who had the command of the Promoti[39] and of those troops who had been particularly intrusted to his charge ...

— The Roman History of Ammianus Marcellinus • Ammianus Marcellinus