In the manner or direction of a flock; following the pattern or behavior typical of a grouped flock.
From 'flock' plus the suffix '-wise' (meaning direction or manner, from Old English 'wisan'), as in 'clockwise' or 'lengthwise.'
The '-wise' suffix is ancient but productive—while 'flockwise' is rare today, it shows how English builds adverbs to describe movement or orientation in specific ways.
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