This word is acceptable for play in the UK dictionary that is being used in the following games:

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v. estimate the capital value of (a company) at an unreasonably or unlawfully high level

v. overestimate the market value of

v. capitalize beyond what the business or the profit-making prospects warrant

""overcapitalise" its lenders and EBS will need to raise an additional 438 million euros by the end of February to bring its Core Tier 1 capital to 13.5 percent."

capitalize    capitalise    overestimate    overrate   

overcapitalize