Formed as walr(us) + -i, the -us of walrus misinterpreted as a nominative singular case ending of a masculine noun of Latin’s second declension; compare walrii.
- (nonstandard, proscribed, uncommon) Misconstructed plural form of walrus.
Usage notes 
- The plural form *walri is incorrect. Walrus derives from Danish, not Latin; walrus couldn’t be a Latin derivation because Latin does not have the letter ‘w’. The etymologically-consistent plural form is walrusser.