rails/rails — pull request #3762 by amatsuda (2011-11-26 15:26:11+00:00)
Title: 'criterion'.pluralize => 'criteria'

Added a pluralization rule for 'criterion' <=> 'criteria'

I occasionally use this term in real world business applications (at least, far more often than 'octopus' or 'zombie'), so I hope this rule to be supported by default.