(1 poi 4. Nouns with the Latin ending "US" in the nominative and "I" in the genitive are generally
O ist declension feminine.
2nd declension masculine.
2nd declension neuter.
Ist declension masculine.

Did you ever get the answers?

Where's the excerpt? also i think the answer is the last one

With the name kĺťga (pronounced koh-ga), kĺť means fire. also, ko without the accent mark, means "heart, body and soul." so you could use the name kĺťko. it is not a masculine sounding name in english. you could also use a modified form like kokoro.