Weird is etymologically related to Worth. Weird is related to Odd. Odds is etymologically related to Odd. Odds is a type of Likelihood. 
Cry is related to Buy. Buy is related to Good. Good is related to Ready. 
Worth <--EtymologicallyRelatedTo-- Weird <--RelatedTo--> Odd <--EtymologicallyRelatedTo-- Odds --IsA--> Likelihood 
Cry <--RelatedTo--> Buy <--RelatedTo--> Good <--RelatedTo--> Ready 