極
ごく · goku · JLPT N3 · adverb
very
極 = 木 wood + 亟: the ridgepole, a house's top beam, so extreme, very
極 first meant the ridgepole, the highest beam in a roof. The sense moved from highest point to extreme to very, which is ごく. Sound hook: goku sounds like Goku, and Goku is very strong, so ごく means very.