tressis

From tri- (“three”) +‎ as (“a Roman coin of low value”) (stem ass-).

• (Classical Latin) IPA^(key): /ˈtres.sis/, [ˈt̪rɛs̠ːɪs̠]
• (modern Italianate Ecclesiastical) IPA^(key): /ˈtres.sis/, [ˈt̪rɛsːis]

tressis m (genitive tressis); third declension

1. a coin worth three asses
2. a trifle

Third-declension noun (i-stem, accusative singular in -em or -im, ablative singular in -e or -ī).

• “tressis”, in Charlton T. Lewis and Charles Short (1879) A Latin Dictionary, Oxford: Clarendon Press
• tressis in Gaffiot, Félix (1934) Dictionnaire illustré latin-français, Hachette.