Mediolatinus

Likely calqued on/backported from Italian mediolatino (“Medieval Latin”, adj. and subst.) or another Romance language, and is more in line with Greek than with Latin word-formation models. Analyzable as medius (“middle”) +‎ -o- +‎ Latīnus (“Latin”).

• (Classical) IPA^(key): /me.di.o.laˈtiː.nus/, [mɛd̪iɔɫ̪äˈt̪iːnʊs̠]
• (Ecclesiastical) IPA^(key): /me.di.o.laˈti.nus/, [med̪ioläˈt̪iːnus]

Mediolatīnus (feminine Mediolatīna, neuter Mediolatīnum); first/second-declension adjective

1. (Contemporary Latin, very rare) Medieval Latin (of or pertaining to the forms of the Latin language written, spoken, and sung during the Middle Ages)
   • 2001, Terence Tunberg, “De Marco Antonio Mureto Oratore et Gallo et Romano” in Humanistica Lovaniensia: Journal of Neo-Latin Studies, volume L, ed. Gilbert Tournoy, Leuven University Press, →ISBN, 306, footnote 7:

     Quae cum de sermōnis proprietātibus praecēperit Valla, vestīgia tamen syntaxeos Mediolatīnae in eius scrīptīs cernere possumus nōn pauca.

First/second-declension adjective.

• Mediolatīnitās