일흔
ilheun · TOPIK 1
seventy
ilheun = 일곱 (ilgop, seven) keeps its il- and adds the tens ending -heun
Native Korean tens echo their units: 일곱 (seven) gives 일흔 (seventy), just as 아홉 (nine) gives 아흔 (ninety). Same il- start, with -heun marking the decade. Sound hook: ill-hun, close to ill hen, seven-ty years old.