Written with capital letters, or having taken advantage of a situation for gain. In finance, refers to the total value of a company's shares.
From Latin 'capitalis' (relating to the head), through 'capital.' The financial meaning developed because 'capital' originally meant the principal sum of money, the 'head' of wealth. The typography meaning emerged as printing standardized letter forms.
The connection between capital letters and financial capital isn't coincidental - both relate to being 'at the head' or most important. Interestingly, the shift key on keyboards was originally called the 'capital shift' because its primary function was creating capital letters.
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