French

Adjective

gravissime m, f ‎(plural gravissimes)

1. very important, very serious, very grave

Italian

Adjective

gravissime

1. feminine plural of gravissimo

Latin

Adjective

gravissime

1. vocative masculine singular of gravissimus

References

• gravissime in Charlton T. Lewis (1891) An Elementary Latin Dictionary, New York: Harper & Brothers