Kiev

Kievskoi means "from Kiev", formed according to Type IV on p. xxix of Wickenden. It says Kiev was founded c. 878-82 on p. 434 of the same source.

The modern Russian adjective is Kievskii, not Kievskoi. Kievskoi would be genetive case, not nominative case. But there are several examples of placenames using the -skoi ending in Wickenden, esp. in late period.

Primary Sources: 882 in primary chronicle: И пришли к горам Киевским, и узнал Олег, что княжат тут Аскольд и Дир. и при̑доста къ горамъ Києвьскымъ. и оувидѣ Ѡлгъ. ӕко Ѡсколдъ и Дирд̑ъ 35 Ж кнѧ̑жита. []

Kievskoi || Kiev ||
 * **City ending in -ov/-ev/ovo** || **With preposition** || **Noun** || **Patronymics** || **Adjectives** || **Unmarked** || **Sources/Notes** ||
 * Kiev ||  || Kievlianin, **Kiianin** || Kievich, **Kyianinov** || Kievskij,