deaf and dumb alphabet
Webster's Dictionary (GCIDE)
Alphabet \Al"pha*bet\, n. [L. alphabetum, fr. Gr. ? + ?, the first two Greek letters; Heb. [=a]leph and beth: cf. F. alphabet.]
1.The letters of a language arranged in the customary order; the series of letters or signs which form the elements of written language. [1913 Webster]
2.The simplest rudiments; elements. [1913 Webster]
The very alphabet of our law.— Macaulay.[1913 Webster]
Deaf and dumb alphabet. See Dactylology. [1913 Webster]