olí- prefix /ō.lí/
oní- (alternative)
Definitions
  1. alternative form of oní- (“a prefix (added to nouns to detail ownership or association to the noun)”) alt-ofalternativemorpheme
    (Ẹgba) oli- + ilé (“house”) → olílé (“landlord”)
    oli- + òòṣà (“deity, orisha”) → olóòṣà (“worshipper of the orisha”)
    (Ekiti) oli- + ụgbajúmọ̀ (“fame”) → ọlụ́gbajúmọ̀ (“celebrity”)
    (Ekiti) oli- + ọ̀fịn (“palace”) → Ọlọ́fịn (“title associated with kingship and royalty”)
    (Ekiti) oli- + ọ̀yị́nyị́n (“gossip”) → ọlọ́yị́nyị́n (“gossiper”)
    (Ẹgba) oli- + ìgbín (“a drum associated with the deity Obatala”) + dé (“to arrive”) → Olígbìndé (“A Yoruba surname meaning "The igbin drummer has arrived"”)
    oli- + ọwá (“palace, king”) → Ọlọ́wá (“title of a king”)
    (Ekiti) oli- + ió (“money”) → olíó (“rich person”)
    (Ikalẹ) oli- + oghó (“money”) → ológhó (“rich person”)
    (Ondo) oli- + ọ̀bùn (“market”) → Lọ́bùn (“chief of commerce”)
    (Ondo) oli- + èkìkì (“oriki”) → lékìkì (“oriki chanter”)
Etymology
From o- (“nominalizing prefix”) + lí (“to have; to own”). The "o" prefix harmonizes with the initial vowel associated with the noun it precedes. Because /n/ and /l/ are allophonic, both oní- and olí- are essentially the same, and in Standard Yoruba, oní- will often have an /l/ when in compounds. However, in certain dialects, the /n/ and /l/ are not allophonic in this case, /l/ is primarily used like in Egba and Ekiti, while in Ondo or Ijebu, only /n/ is used.
Component words
o-nominalizing prefixto have; to own
Source: Wiktionary, where this word is spelled “oli-”. Reference: en-oli--yo-prefix-ula4OjM~