EXTREMELY Copy link • EXTREMELYsumme, summopere (most highly): quam or vel maxime (very much; beyond measure): extremely courteous to anybody, summe officiosus in aliquem: extremely pleasant, summe jucundus: extremely proper, summe decorus. It is also frequently rendered by the superlative; sometimes with the addition of summe or vel maxime; e.g., a person who is extremely attentive to me, summe observantissimus mei.