Isca Silurum

From Isca (“city on the Usk”), with the local tribe Silurēs used to distinguish it from the similarly named Isca Dumnōniōrum (“Exeter”).

• (Classical Latin) IPA^(key): [ˈɪs.ka ˈsɪ.ɫʊ.rũː]
• (modern Italianate Ecclesiastical) IPA^(key): [ˈis.ka ˈsiː.lu.rum]

Isca Silurum f sg (genitive Iscae Silurum); first declension

1. (historical) synonym of Isca Augusta, Caerleon on the Usk

First-declension noun with an indeclinable portion, with locative, singular only.

• “Isca”, in William Smith, editor (1854, 1857), A Dictionary of Greek and Roman Geography, volume 1 & 2, London: Walton and Maberly