augment
index
accrue (increase), accumulate (enlarge), aggravate (exacerbate), aid, amplify, append, bear (yield), boom (increase), conduce, develop, elaborate, enhance, enlarge, exacerbate, expand, extend (enlarge), hoard, increase, intensify, magnify, raise (advance), recruit, reinforce, supplement
Burton's Legal Thesaurus.
William C. Burton.
2006