A male name. Greek κόσμος, ‘order’: the name of one of the two supposed martyrs Kosmos and Damianos whose relics were revealed in a dream to St Ambrose, and who became the patron saints of Milan. Cosimo or Cosmo became a favourite name in Italy, and was adopted by the Florentine family of Medici. It was the name of the 3rd Duke of Gordon (d. 1752) whose father was a close friend of Cosimo III, Grand Duke of Tuscany, and since that time has been constantly used in the Gordon family, who have carried it by marriage into other Scottish families.

An Italian, thence English, contraction of Italian Cosimo, at one time a very aristocratic name, meaning ‘order’: Greek Κοσμας, (kosmos), whence, by philosophical evolution, our cosmos, the universe; indeed, we can now speak of ‘cosmic order’ and ‘cosmic plan’.

A name imported from Italy, where it became famous in Milan and Florence, from being borne by the family of the Medici (Cosmo di Medici). Miss Yonge says St. Ambrose discovered at Milan the bones of two persons whom a dream pronounced to be those of Kosmos and Damianos, two martyred Christians, who were of course placed among the patrons of Milan, and hence the name became famous in Italy. It appears that from Kosmos the Italians made Cosmo or Cosimo. The name Kosmos is from the Greek κοσμος, an adorning ornament, the world; so called from its regularity and beauty.

Greek (masculine) - Order.

A Greek name, meaning: Orderly.