Mercuries

Mercuries is a plural noun formed from the proper noun Mercury. In standard usage, Mercury refers to either the planet closest to the Sun or the Roman god, and these singular senses are not usually written as Mercuries. The term Mercuries appears mainly in contexts involving names, titles, or branding rather than as a regular reference to the planet or deity.

Etymology and grammar notes indicate that Mercuries is an ordinary plural formed by adding -ies to Mercury, a pattern typical for English nouns ending in a consonant followed by a -y. As a result, Mercuries can function as the plural of a name when multiple distinct entities share the same label.

Usage and scope: Mercuries is uncommon in scientific or mythological writing. Writers typically refer to Mercury in the singular, even when multiple objects or figures might share the name in a fictional or branding context. The term tends to appear in speculative fiction, company names, organizational titles, or other proper-noun usages rather than as a standard plural for the planet or the god.

See also: Mercury (disambiguation) for related terms; Mercurius; Hermes.