the.com/criterion

The singular nobody uses, right before they misuse its plural, criteria, instead.

means A standard or rule you use to judge, decide, or test something against.

from From Greek kriterion, 'a means for judging,' built from krites, 'judge,' and ultimately the verb krinein, 'to separate, decide, judge' — the same root that gives us 'critic' and 'crisis.' It passed into Latin and then English largely intact, keeping its Greek plural, criteria, tucked inside it like a trap waiting to be misused.

plural form
criteria, not criterions, despite everyone's instincts
origin
greek kriterion, meaning means of judging
common crime
saying one criteria, which grammarians quietly weep at
relative
cousin to critic and crisis, all about judgment
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