cresme

Late Latin chrisma meant consecrated oil — the oil used to anoint the sick, the dying, and newly crowned monarchs. The word came from Greek chrisma (χρῖσμα), from chriein, to anoint. Christ himself is "the anointed one," from the same root. This was sacred vocabulary. Then Gallo-Romance speakers — the Latin-speaking people of what became France — started using a form of the word, cresme or craime, for the thick fatty layer that floated to the top of fresh milk.

The transfer makes a certain physical sense. Chrism was a rich, oily substance that rose above ordinary liquid and was skimmed off for special use. Cream is a rich, fatty substance that rises above ordinary milk and is skimmed off for special use. The analogy is tactile, not theological. But the fact remains: when a French farmer in the 900s looked at the fat floating on his milk, the word that came to mind was the one used for anointing oil in church.

Old French cresme entered English as cream by the 1300s. The sacred origin was already forgotten. Cream was just cream — dairy fat, cooking ingredient, color name. English piled metaphors on top: the cream of the crop (the best), cream rises to the top (excellence is self-evident), a creampuff (soft and unserious). None of these carry any memory of anointing oil.

The split between cream and chrism is complete in modern English. Chrism survives only in liturgical contexts — Catholic and Orthodox churches still use chrism oil in baptism and confirmation. Cream sits in your coffee. They are the same word, separated by a thousand years and the distance between a cathedral and a dairy farm.