superadd

super- +‎ add

superadd (third-person singular simple present superadds, present participle superadding, simple past and past participle superadded)

1. (transitive) To add on top of a previous addition.
   • 1843, Thomas Carlyle, Past and Present, book 2, ch. IX, Abbot Samson

     To our antiquarian interest in poor Jocelin and his Convent, where the whole aspect of existence, the whole dialect, of thought, of speech, of activity, is so obsolete, strange, long-vanished, there now superadds itself a mild glow of human interest for Abbot Samson […]

   • 2007, Lex Newman The Cambridge companion to Locke's "Essay concerning human understanding"‎

     Locke's claim that God may superadd to matter a faculty of thinking allows us to usefully relabel our problem. . .