Octopii

noun

noun ·Rare ·Advanced level

Definitions

Noun
  1. 1
    Misconstructed plural of octopus. form-of, misconstruction, nonstandard, plural, proscribed, rare

Etymology

In imitation of Latin nominative plural forms of nouns ending in -ius, such as radius > radii. Compare walrii and penii.

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.