| Abecedary 1. (a.) Pertaining to, or formed by, the letters of the alphabet; alphabetic; hence, rudimentary. 2. (n.) A primer; the first principle or rudiment of anything. Thesaurus Entries abecedarium, alphabet book, and arithmetic, battledore, casebook, elementary education, elements, exercise book, first steps, gradus, grammar, hornbook, initiation, introduction, manual, manual of instruction, primer, propaedeutic, reader, reading, rudiments, schoolbook, speller, spelling book, t, text, workbook, writing |