What is the meaning of Equis?

The name of the Latin-script letter X/x.

who, what

dative/ablative plural of equus (horse)

dative/ablative plural of equa (female horse)

The name of the Latin-script letter X/x.

the name of the Latin-script letter X/x, in the Abecedario

Alternative form of ekis

Source: wiktionary.org