What is the meaning of Mys?

ISO 639-3 language code for Mesmes.

clod (of earth), bread crust

cape (headland)

plural of mous

inflection of mūs:

1. genitive/dative singular
2. nominative/accusative plural

genitive/dative singular

nominative/accusative plural

coziness

imperative of mysa

nasal mutation of bys

Source: wiktionary.org