least weasel vs swift

least weasel

noun
  • The common weasel, little weasel, or simply weasel (Mustela nivalis), the smallest member of the weasel genus Mustela, native to Eurasia, North America, and North Africa. 

swift

noun
  • A moth of the family Hepialidae, swift moth, ghost moth. 

  • Any of various fast-flying hesperiid butterflies. 

  • A small plain-colored bird of the family Apodidae that resembles a swallow and is noted for its rapid flight. 

  • A light, collapsible reel used to hold a hank of yarn in order to wind off skeins or balls. 

  • The main cylinder of a carding-machine. 

  • Any of certain lizards of the genus Sceloporus. 

adj
  • Capable of moving at high speeds. 

  • Fast; quick; rapid. 

How often have the words least weasel and swift occurred in a corpus of books? (source: Google Ngram Viewer )