must not, do not, be not
莫 centers on negation and prohibition: expressing that something must not happen, should not be done, or simply is not the case.
莫 originally depicted the sun setting behind vegetation, conveying the idea of dusk or disappearance. Over time it was borrowed to express negation and prohibition, while the original meaning was taken over by 暮.
The top 艹 suggests thick grass, and the bottom 旲 looks like a sun being swallowed. Picture the sun disappearing behind dense plants, leaving nothing behind — a scene of absence that matches 'must not' and 'be not'.
For バク, imagine a guard shouting 'Back!' to stop someone from entering a forbidden area: Back -> バク, and the command means 'must not enter'.
vast; huge; immense; enormous; colossal
knitted fabric; knitted goods; knitwear
forlorn and helpless; lonely and desolate
dreary; bleak; desolate
scene looking desolate and forlorn
malva nut (Scaphium affine)
lace; lacing braid
cordial relations
getting along extremely well; maintaining a fond friendship
very close friend; bosom friend
worldly woman
desolate; dreary; lonesome