Definition of "crool"

crool¹

/kɹuːl/

verb
third-person singular simple present crools, present participle crooling, simple past and past participle crooled
1. (archaic, intransitive) To murmur or mutter.
  Quotations
  I […] lay down to rest / Upon a grassy hillock, o'er which bowed / A bush in which some late bird kept her nest. / And, as she crooled, I slept.
  1873, Thomas Cooper, The Paradise of Martyrs

crool²

/kɹuːl/

adjective
comparative crooler, superlative croolest
1. Alternative spelling of cruel
  Quotations
  The world 'as got me snouted jist a treat; Crool Forchin's dirty left 'as smote me soul.
  1915, C.J. Dennis, The Songs of a Sentimental Bloke, published 1916, page 13
  "That's about the croolest, outrageousest job you've found for me yet," said Willie, indignantly.
  1934 May 8, The Sun, Sydney, page 6, column 3
verb
third-person singular simple present crools, present participle crooling, simple past and past participle crooled
1. Alternative spelling of cruel
  Quotations
  And for them me health I have "crooled."
  1919 August 17, The Truth, Brisbane, page 1, column 8