This rare kanji has no clear standalone meaning. Treat its meaning as uncertain.
榒 is a rare character combining 木 (tree/wood) with 弱 (weak). Its exact historical development and original meaning are uncertain.
With 木 (tree) beside 弱 (weak), imagine a weak, fragile tree that bends easily. This image may help remember the character, though its actual meaning is unclear.
For ダク, picture a weak tree that ducks under a strong wind: duck -> ダク, and the tree bends weakly.
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