The Collaborative International Dictionary
Abecedarian psalms
Abecedarian \A`be*ce*da"ri*an\, Abecedary \A`be*ce"da*ry\, a. Pertaining to, or formed by, the letters of the alphabet; alphabetic; hence, rudimentary.
Abecedarian psalms, hymns, etc., compositions in which
(like the 119th psalm in Hebrew) distinct portions or
verses commence with successive letters of the alphabet.
--Hook.