What is another word for "strengthen"?

Roget's Thesaurus (1911) lists these synonyms for "strengthen": accession, accretion, add, additional, advance, aggrandize, aggrandizement, aggravate, aggravation, ahead, air, ascend, ascent, augment, augmentation, bait, better, brace, bracing, break, breath, breathe, breather, cold, come, cream, crescendo, deep, deepen, development, dilatation, dilate, disperse, dispersion, draw, drink, enhance, enlarge, enlargement, exacerbate.