the.com/strikethrough

means A horizontal line drawn through text to mark it as deleted, wrong, or retracted while leaving it visible.

from A straightforward compound of 'strike' — long used in the sense of 'cancel' or 'cross out,' as in striking a name from a list — plus 'through,' describing the line's path across the words. Predates computers by centuries, from the era of pen-and-ledger corrections, but found new life as a text-formatting feature once word processors and web markup (the HTML <strike> and <s> tags) gave it a digital home.