in primis - Wiktionary, the free dictionary

From Wiktionary, the free dictionary

Borrowed from Latin in prīmīs (literally “in firsts”).

in primis

1. first and foremost; first of all; primarily

   Synonyms: innanzitutto, in primo luogo

• in primis in Treccani.it – Vocabolario Treccani on line, Istituto dell'Enciclopedia Italiana

• imprīmīs

in prīmīs.

• (Classical Latin) IPA^(key): /ˈin ˈpriː.miːs/, [ˈɪn ˈpriːmiːs̠]
• (modern Italianate Ecclesiastical) IPA^(key): /ˈin ˈpri.mis/, [ˈin ˈpriːmis]

in prīmīs (not comparable)

1. mainly, primarily
2. most importantly, especially
3. first, among the first

• In primis - Oxford Reference