It is something of a platitude among native speakers of English to say that our language is a motley one. It is a West Germanic language that has taken in an enormous amount of vocabulary from non-Germanic languages, especially French, Latin, and Ancient Greek. These other languages have systems for the pluralization of nouns that differ from the predominant system in English and, in some cases, users of English have favored pluralizing nouns derived from other languages according to the morphological rules of the word’s language of origin. As a result of this and other factors, pluralizing nouns in English is sometimes a controversial subject.
One of the most controversial of all English nouns to pluralize is octopus, which ultimately derives from the Greek word ὀκτώπους (oktṓpous), which is a compound of the Greek word ὀκτώ (oktṓ), meaning “eight,” and the noun πούς (poús), meaning “foot” or “leg.” English-speakers have tried to pluralize this noun in various ways, with the most popular plural forms being octopuses and octopi. But which plural for this word is the most pedantically correct? In this post, I will delve into the wonderful and exciting world of etymology to answer this question.
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