Definition of expletory in English:

expletory

adjective

  • Serving to fill up or complete something; unnecessary; (of a word or expression) serving to fill out a sentence or a metrical line; = "expletive"; (later often) of the nature of an expletive.

Origin

Mid 17th century (in an earlier sense). From post-classical Latin expletorius from classical Latin explēt-, past participial stem of explēre + -ōrius.

Pronunciation

expletory

/ˈɛksplɪt(ə)ri//ɪkˈspliːt(ə)ri/