In the manner of a beacon; with regard to beacons or beacon operation.
From beacon + -wise (Old English 'wīse' meaning manner or direction). The -wise suffix creates adverbs meaning 'in the manner of' or 'with respect to', as in clockwise.
The -wise suffix is quietly everywhere in English—clockwise, lengthwise, likewise—all inherit this Old English word for 'manner,' making it one of our most productive word-building tools.
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