flustra

• flū̆strum (Medieval Latin)

Perhaps from earlier *flūxtra, from fluō (“to flow”) +‎ -trum.

flū̆stra n pl (genitive flū̆strōrum); second declension

1. (pre-classical, post-classical) calm at sea, the quiet state of the sea

   Synonym: malacia

   • 69 CE – 122 CE, Suetonius, “Operum quae perierunt Fragmenta”, in C. Suetonii Tranquili Opera Omnia, volumen tertium, 1826 edition, page 1145:

     Flustra, motus maris sine tempestate fluctuantis. Naevius in bello Poenico quod ait: honorariae honestae stabant in flustris, ut si diceret in salo

     Flustra, the movement of the sea when not surging from bad weather. Naevius says in his "Bellum Poenicum": "[honorariae honestae] stood still in the calm", that is to say, "in the sea".

Second-declension noun (neuter), plural only.

• "flustra", in Charles du Fresne du Cange’s Glossarium Mediæ et Infimæ Latinitatis (augmented edition with additions by D. P. Carpenterius, Adelungius and others, edited by Léopold Favre, 1883–1887)
• “flustra”, in Charlton T. Lewis and Charles Short (1879), A Latin Dictionary, Oxford: Clarendon Press
• “flustra”, in Gaffiot, Félix (1934), Dictionnaire illustré latin-français, Hachette.
• White, John T. (1858), Latin Suffixes‎^[1], London: Spottiswoode & co, page 28