tongs vs unguis

tongs

noun
  • An instrument or tool used for picking things up without touching them with the hands or fingers, consisting of two slats or grips hinged at the end or in the middle, and sometimes including a spring to open the grips. 

  • A large scissors-like two-piece center-hinged forged-iron implement with oval-loop handles and with pointed tips turned inward (in the same plane as and perpendicular to the handles) to facilitate lifting and carrying a block of ice. Often called ice tongs. 

unguis

noun
  • The nail, claw, talon, or hoof of a finger, toe, or other appendage. 

  • The slender base of a petal in some flowers; a claw; an ungula. 

  • An old measure equal to the length of the nail of the little finger. 

  • One of the terminal hooks on the foot of an insect. 

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