Webster's Revised Unabridged Dictionary · 1913

Thereafter

Thereafter , adverb

[Anglo-Saxon earafter after that. See There, and After.]

1.
After that; afterward.
2.
According to that; accordingly.
I deny not but that it is of greatest concernment in the church and commonwealth to have a vigilant eye how books demean themselves as well as men; and thereafter to confine, imprison, and do sharpest justice on them as malefactors. — Milton
3.
Of that sort. [Obsolete]
My audience is not thereafter. — Latimer