по-(po-) + рабо́тать(rabótatʹ,“to work”) → порабо́тать(porabótatʹ,“to work a bit”)
по-(po-) + спа́ть(spátʹ,“to sleep”) → поспа́ть(pospátʹ,“to sleep a bit”)
added with a hyphen to certain adjectives to create adverbs, often (but not always) with the meaning "in the manner of behaviour, speech etc. of [the adjective]" typically changes the adjective ending to the dative masculine/neuter singular ending, but the following additional changes also occur:-ский(-skij) to-ски(-ski),-ско́й(-skój) to-ски́(-skí),-ий(-ij) to-ьи(-ʹi)
по-(po-) + ру́сский(rússkij,“Russian”) → по-ру́сски(po-rússki,“in a Russian way, Russian (the language)”)
по-(po-) + мужско́й(mužskój,“male, masculine”) → по-мужски́(po-mužskí,“in a manly way, like a man”)
по-(po-) + ра́зный(ráznyj,“different, various”) → по-ра́зному(po-ráznomu,“in various ways, it depends”)
по-(po-) + дома́шний(domášnij,“domestic, home”) → по-дома́шнему(po-domášnemu,“like at home”)
the past tense of some verbs with a one-syllable root: e.g.по́лил,поли́л(pólil, políl,masculine singular past tense) fromполи́ть(polítʹ,“topour, towater”),по́мер(pómer,masculine singular past tense) fromпомере́ть(pomerétʹ,“todie(colloquial)”),по́дал,пода́л(pódal, podál,masculine singular past tense) fromпода́ть(podátʹ,“togive, toserve (food), todeliver (avehicle)”);