sook
noun /suːk/,  /sʊk/
  /suːk/,  /sʊk/
(Australian English, New Zealand English, Canadian English, informal)- a person who is not brave synonym coward, crybaby
 - a young cow that has been fed from a bottle, not by its mother
 
Word Originmid 19th cent.: dialect variant of the noun suck.