D defs.my
Entry 2 senses Webster, 1913

Agendum

/(ȧ*jĕn"dŭm)/ · A·gen·dum · IPA /əˈd͡ʒɛn.dəm/
01 n. Something to be done; in the pl., a memorandum book; also, a list of items to be considered. See agenda.
pl. Agenda ((ȧ*jĕn"dȧ))
  1. 1.
    Something to be done; in the pl., a memorandum book; also, a list of items to be considered. See agenda. See: agenda
  2. 2.
    A church service; a ritual or liturgy. [In this sense, usually Agenda.]