LATIN DICTIONARYLexicon Latīnum
suffixfirst/second-declension suffix

-tinus

-tinus (feminine -tina, neuter -tinum)

Meaning

  1. morphemesuffixderives temporal relational adjectives, chiefly from temporal adverbs
    crās (“tomorrow”) + -tinus → crāstinus (“of tomorrow”)
    hōrnō (“this year”) + -tinus → hōrnōtinus (“of this year”)

Origins

From Proto-Indo-European *-tn̥nós, ultimately from Proto-Indo-European *ten-. Compare the suffix -tana in श्वस्तन (śvastana, “of tomorrow”), दिवातन (divātana, “daily”) and नूतन (nūtana, “current, present”).

Quick answers

What does -tinus mean in Latin?
-tinus, a suffix, means “derives temporal relational adjectives, chiefly from temporal adverbs”.