To twine around; to twist or wind around something; to encircle or wrap with something twisted.
From 'twine' (Old English 'twīnan,' to twist together) with the prefix 'be-' meaning 'to cause' or 'to cover with.' The 'be-' prefix intensifies the action of twining around something.
The prefix 'be-' in verbs like 'betwine,' 'beguile,' and 'bemoan' shows an older grammar pattern where 'be-' could turn any verb into a more emphatic or complete version—it's like the English language's deleted layer of intensity.
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