Examples: cartography card archaeology archetype monarchy legal loyal purse personal cinema kinase car carpenter hippopotamus Mesopotamia dative data date
...
English o
← English oh (alter)
← English o' (mention)

→ English os (suffix)
→ English of (alter)
→ English oh (mention)
→ English psycho (suffix)
→ English rego (suffix)
→ English righto (suffix)
→ English albo (suffix)
→ English smoko (suffix)
→ English deffo (suffix)
→ English arvo (suffix)
→ English -o (mention)
→ English Salvos (suffix)
→ English servo (suffix)
→ English wino (suffix)
→ English cheerio (suffix)
→ English bottle-o (suffix)
→ English blotto (suffix)
→ English birdo (suffix)
→ English in silico (suffix)
→ English uggo (suffix)
→ English dono (suffix)
→ English scanno (suffix)
→ English thinko (suffix)
→ English distro (suffix)
→ English a (alter)
→ English Freo (suffix)
→ English O (link)
→ English preso (suffix)
→ English cubewano (suffix)
→ English povvo (suffix)
→ English friendo (suffix)
→ English weirdo (suffix)
→ English saddo (suffix)
→ English ammo (suffix)
→ English milko (suffix)
→ English bizzo (suffix)
→ English dumbo (suffix)
→ English journo (suffix)
→ English goodo (suffix)
→ English Davo (suffix)
→ Japanese オー (borrowed)
→ Portuguese ó (link)
→ Thai โอ (borrowed)