superadding

Verb

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.
   • 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 […]1843 April, Thomas Carlyle, “Abbot Samson”, in Past and Present, American edition, Boston, Mass.: Charles C[offin] Little and James Brown, published 1843, →OCLC, book II (The Ancient Monk)