What is another word for "reinforcement"?

Roget's Thesaurus (1911) lists these synonyms for "reinforcement": accession, accompaniment, accrue, add, addition, adjection, adobe, advene, affix, against, aid, ammunition, and, annex, annexation, append, arm, arms, augment, back, baggage, batman, beat, become, brick, brown, calico, cambric, cashmere, cater, caterer, cement, clap, clapboard, clay, commissariat, commissary, compo, composition, comprador.