Where does “춤군” come from?

춤군 (Korean) comes from Korean -군, from Korean -구나 — a [[w:Korean speech levels#Haera-che.

Ancestry of “춤군”, step by step

StepLanguageWordMeaning
1Korean-군I see; in the [[w:Korean speech levels#Hae-che
2Korean-구나a [[w:Korean speech levels#Haera-che
Every word from Korean -구나 →Every word from Korean -군 →