1) Accrual 2) Accruement 3) Accumulation 4) Deposit 5) Exclusively Saxon word 6) Exclusively Anglo word 7) Form by degrees 8) Gradual increase 9) Gradually construct 10) Hoopla 11) Increase in amount or number 12) Strengthening 13) Word with Anglo-Saxon origins 14) Word of purely Anglo origin 1) Crescendo 2) Hype 
[n] - the act of building up an accumulation
noun the act of building up an accumulation; `I envied his rapid buildup of assets`; `a military buildup in preparation for the invasion`
a building up, as of military forces; increase in amount or number. · a process of growth; strengthening; development: the buildup of heavy industry. · an accumulation, as of a particular type of material: a buildup of salt deposits. · an increase, as in potential, intensity, or pressure: A buildup of suspense began halfway through ...