A variant spelling of coistrel; a disreputable person or rogue (archaic).
From the same root as coistrel, representing an alternative historical spelling. Medieval and Early Modern texts show multiple spelling variants of this low-status term.
The existence of 'coistril' alongside 'coistrel' shows how fluid Renaissance spelling was—authors freely varied spellings based on pronunciation or regional dialect, making old texts look chaotic to modern eyes.
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