Tertio calendas.
http://lila-erc.eu/data/lexicalResources/LatinPortuguese/Velez/id/UsageExample/n0563.sg01.s99.u01 <http://www.w3.org/ns/lemon/lexicog#UsageExample>
Tertio calendas.
diem certum significare:
Sciendum, cùm dico:
Tertio calendas: