brainsickly

English

Etymology

From brainsick +‎ -ly.

Pronunciation

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Adverb

brainsickly (comparative more brainsickly, superlative most brainsickly)

(obsolete) In a brainsick manner.
- c. 1606 (date written), William Shakespeare, “The Tragedie of Macbeth”, in Mr. William Shakespeares Comedies, Histories, & Tragedies […] (First Folio), London: […] Isaac Iaggard, and Ed[ward] Blount, published 1623, →OCLC, [Act II, scene ii]:
  LADY MACBETH. […] You do unbend your noble strength, to think
  So brainsickly of things.

References

“brainsickly”, in Webster’s Revised Unabridged Dictionary, Springfield, Mass.: G. & C. Merriam, 1913, →OCLC.