1 (wiktionary) 2 (vi.wikipedia) 3 (en.wikipedia) 4 (glosbe)

Core Words Familarize yourself with the 'core words'.
Compounds Expand your vocabulary by studying more complex words built by the 'core words'.
Wordsense Learn about the wordsenses of the english term.

ETYMOLOGY

KOREAN 3.0 Eng Wordtype Etym. Gb Vie
☆☆☆ CALENDAR Noun 달 历日历 lịch
☆☆ SOLAR CALENDAR Noun 阳历阳历，公历 dương lịch
☆☆ LUNAR CALENDAR Noun 阴历阴历，农历 âm lịch