risk, disregard, go all out for
拚 centers on throwing oneself into something without holding back: risking, disregarding caution, or going all out for a goal.
拚 combines 扌 (hand) with 弁, which likely contributes the sound. The exact historical development is uncertain, but the character is associated with actions done by hand, such as risking or disregarding.
The hand radical 扌 beside 弁 suggests a hand pushing forward boldly. Imagine a hand throwing caution aside to go all out.
For ヘン, picture a hen recklessly dashing across a road, risking everything: hen -> ヘン, and the hand 扌 is like the hen's bold move.
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