оно

From Proto-Slavic *ono.

оно • (ono)

1. it
2. nominative and accusative singular neuter of онъ (onŭ)

• ѥ (je)

• IPA^(key): [ɐˈno]

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оно́ • (onó) (masculine counterpart он, feminine counterpart она́)

1. it (third-person neuter singular pronoun)

• Whenever a preposition stands immediately before any of the oblique cases of the third-person pronoun (singular or plural) and directly governs it, then an н- must be prefixed to the pronoun: от него́ (ot nevó) (from it), на нём (na njóm) (on it), у него́ (u nevó) (it has), к нему́ (k nemú) (to it), с ним (s nim) (with it).
• The explanation for this н-prothesis is that, originally, some Russian prepositions ended in the letter -н: сън (sŭn, “with”...cf. Greek σύν (σύν), Latin cum). Eventually, the final н of these prepositions migrated across to the pronoun, so that сън им became modern с ним (s nim), and then this was generalized to include all prepositions when governing any third-person pronoun.
• Note that if the preposition does not directly govern его́ (jevó) (i.e., when его́ (jevó) is a possessive pronoun), then н- is not prefixed: в его́ положе́нии (v jevó položénii) (in its position), о его́ тка́ни (o jevó tkáni) (about its fabric), с его́ ве́сом (s jevó vésom) (with its weight).
• When there is another word separating a preposition and any oblique case of оно, the н- is not added: у самого́ его́ (u samovó jevó) (with it itself).

• его́ (jevó)
• свой (svoj)

From Proto-Slavic *ono, from Proto-Indo-European *h₂eno-.

• IPA^(key): /ǒno/
• Hyphenation: о‧но

о̀но (Latin spelling òno)

1. it