Dark
い adjective
くらい
暗い (くらい) Dark
闇 (やみ) Darkness, The Dark
暗闇 (くらやみ) Darkness, The Dark
黒い (くろい) Black
辛い (からい、つらい) Spicy, Hot, Difficult, Painful
A cougar く and a lion らい look the same in the Dark.
The Dark Kuh く (cow in German) was eaten by a lion らい