I. ˈwā-fər noun
Etymology: Middle English, from Anglo-French wafer, walfre, of Germanic origin; akin to Middle Dutch wafele waffle
Date: 14th century
1.
a. : a thin crisp cake, candy, or cracker
b. : a round thin piece of unleavened bread used in the celebration of the Eucharist
2. : an adhesive disk of dried paste with added coloring matter used as a seal
3.
a. : a thin disk or ring resembling a wafer and variously used (as for a valve or diaphragm)
b. : a thin slice of semiconductor (as silicon) used as a base for an electronic component or circuit
II. transitive verb
( wa·fered ; wa·fer·ing -f(ə-)riŋ)
Date: 1748
1. : to seal, close, or fasten with a wafer
2. : to divide (as a silicon rod) into wafers