Holding the same way across cases and across time. Consistency is not correctness — a thing can be reliably wrong.
Latin consistentia (standing firm, agreement), from consistere (to stand together, take a firm stand), from com- (together) + sistere (to cause to stand); holding the same way across cases and across time.
Holding the same way across cases and across time. It is not the same as being correct — a thing can stand firm and still stand firmly wrong.