Criteriais
Criteriais is not a recognized English word. In standard English, the plural of criterion is criteria. “Criteriais” may appear as a typographical error, a nonce term, or as a brand name or proper noun in some contexts.
Etymology: The term criterion comes from Greek kriterion meaning a standard or measure. It entered English
Usage: When referring to multiple standards, use criteria. Example: "The criteria for admission are listed online."
Contexts: In different fields, criteria specify conditions for inclusion, evaluation, or decision making. The term criteria