From 了 (ryō, “comprehend”) + 承 (shō, “agree to”)
This entry lacks etymological information. If you are familiar with the origin of this term, please add it to the page as described here.
Particularly: “the original first character is 諒 but was replaced with 了 due to not being in the Tōyō kanji list. character glosses for 諒 are "excuse, forgive; guess, presume" and for 了 are "to finish; completed action particle"”