What is another word for "superadd"?

Roget's Thesaurus (1911) lists these synonyms for "superadd": accession, accompaniment, accretion, accrue, add, addition, additional, adjection, advance, advene, affix, aggrandize, aggrandizement, aggravate, aggravation, ahead, annex, annexation, append, ascend, ascent, augment, augmentation, become, clap, crescendo, deepen, development, dilatation, dilate, disperse, dispersion, enhance, enlarge, enlargement, exacerbate, exacerbation, exaggerate, exaggeration, exalt.