Some nouns in English are borrowed from other languages like Latin and Classical Greek. Their pluaral forms are referred to as '''''foreign plurals.''''' -grade 6 ba'ash 2010-2011
The plural of Octopus is Octopuses. Octopodes is also acceptable but rarely used. The common misconception that the plural is octopi comes from the incorrect assumption that Octopus is a Latin word, it is in fact Greek.According to the authoritative Oxford English Dictionary, "the standard plural in English of octopus is octopuses. However , the word octopus comes from Greek and the Greek plural form octopodes is still occasionally used . The plural form octopi, formed according to rules for some Latin plurals, is incorrect"
Foreign nouns in English typically follow the same rules as native English nouns. This includes forming plurals by adding "-s" or "-es", and using articles and adjectives to modify them. Some foreign nouns may retain their original plural form, but usually, they conform to English grammar rules when used in sentences.
octopuses
The standard English plural of octopus is octopuses. However, the word octopus comes from Greek, and the Greek plural form is octopodes ( |äkˈtäpəˌdēz|). Modern usage of octopodes is so infrequent that many people mistakenly create the erroneous plural form octopi, formed according to rules for Latin plurals.
There are several plural forms of the word octopus: Octopuses is the most often used form cited in references in the US, but other forms are accepted such as octopi and octopodes.
There are several plural forms of the word octopus: Octopuses is the most often used form cited in references in the US, but other forms are accepted such as octopi and octopodes.
octopi
"Octopus" in English is piova, polipo or polpo in Italian.
It is a common rule of the English language.
so you can make plurals
The word octopuses is a plural for for the singular octopus. Another plural form is octopi. Both plurals are accepted and in most dictionaries.