acroama, acroasis (Gr.), oral teaching, anything rhetorical or otherwise pleasant to listen to.
Actæon (Gr.), the hunter who surprised Artemis bathing, and so, being changed into a stag, was torn in pieces by his own hounds: a cuckold.
actionnaire (Fr.), shareholder.
actualité (Fr.), real existence: appropriateness.
actum est de republica (L.), it is all over with the republic.
actum ne agas (L.), do not do over again what is done—i.e. do a thing and have done with it.
acushla (Irish), darling.
ad aperturam [libri] (L.), as [the book] opens.
ad arbitrium (L.), at pleasure.
ad astra (L.), to the stars.