From Proto-Slavic *sirota.

сирота • (sirota) f

1. orphan

Inherited from Proto-Slavic *sirota, from *sirъ + *-ota. By surface analysis, си́рый (síryj) +‎ -ота́ (-otá).

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сирота́ • (sirotá) m anim or f anim (genitive сироты́, nominative plural сиро́ты, genitive plural сиро́т, relational adjective сиро́тский, diminutive сиро́тка)

1. orphan

• сироте́ть impf (sirotétʹ), осироте́ть pf (osirotétʹ)
• сиротли́вый (sirotlívyj)
• сиро́тство n (sirótstvo)
• сиро́тствовать impf (sirótstvovatʹ)

• Dal, Vladimir (1880–1882) “сирота”, in Толковый Словарь живаго великорускаго языка (in Russian), 2nd edition, Publication of the bookseller-typographer Wolf, M. O.
• сирота in Большой толковый словарь, editor-in-chief С. А. Кузнецов – hosted at gramota.ru

From сѝрот (“orphaned, poor”).

• IPA^(key): /sirǒta/
• Hyphenation: си‧ро‧та

сиро̀та f (Latin spelling siròta)

1. orphan
2. an unfortunate

• “сирота”, in Hrvatski jezični portal (in Serbo-Croatian), 2006–2025

Inherited from Middle Ukrainian сирота (syrota), from Old East Slavic сирота (sirota), from Proto-Slavic *sirota, from *sirъ + *-ota. Reanalize as Old Church Slavonic: сиръ (sirŭ) (Old Church Slavonic: syr (sirŭ)) +‎ -ота (-ota)

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сирота́ • (syrotá) m pers or f pers (genitive сироти́, nominative plural си́роти, genitive plural сирі́т)

1. orphan
2. unfortunate person
3. (historical, usually in the plural) in medieval Russia, various categories of feudal peasant
4. (plural only, colloquial) goosebumps