To encircle or surround with or as if with a ring.
From en- (to cause to be) + ring (from Old English hring, related to 'round'). The prefix converts the noun into a verb meaning to form into a ring shape.
This archaic verb reminds us that before we used 'encircle' or 'surround,' English speakers would enring things—watching old words disappear shows which words survive based on sound and frequency, not logic.
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