Making a miscalculation is an error in judgment or calculation. It is a mistake that can be caused by a misstep, misjudgment, or misunderstanding. The two crossword solutions for the term 'make a miscalculation' are 'misdoo' and 'ERR'. Misdoo is a verb meaning to do something wrong or incorrectly, while ERR is a verb meaning to make a mistake or be incorrect. Together, these two words describe the act of making a miscalculation.