to split, to rend, to choose, to rub, to wipe
攞 centers on forceful separation: splitting, rending, or tearing apart. The meanings 'to choose', 'to rub', and 'to wipe' are less clearly connected and may represent distinct senses or rare usages.
攞 combines 扌 (hand) with 羅, which likely contributes the sound. The exact historical development is uncertain, and the modern form may be a simplification or variant.
The hand radical 扌 beside the complex net-like 羅 suggests a hand tearing or splitting a net. Imagine pulling a net apart with your hands.
For ラ, imagine the sound of tearing fabric: 'ra!' The hand rips the net with a sharp 'ra' sound.