overbalance
verb
[ əʊvəˈbal(ə)ns ]
• fall or cause to fall over from loss of balance.
• "he overbalanced and fell against the wall"
Similar:
fall over,
topple over,
lose one's balance,
lose one's footing,
tip over,
keel over,
capsize,
overturn,
turn turtle,
push over,
upend,
upset,
cowp,
overbalance
noun
• an excess of weight, value, or amount.
• "an overbalance of propriety"