The Word Honesty comes from the honestas meaning an honor received from others, a kind of “standing in honor” before others (honor + stas (to stand)). It’s an interesting insight in the word that most people are willing to be a little phony in order to get vague appreciation or to be thought of well. (The whole cosmetics industry is based on this). But when one is actually “honored” in a formal way by others, there is an elevated sense that we need to truthfully deserve the honor. And thus honor calls forth honesty.
A similar concept is sincerity. The Word sincerity comes from the Latin as well: sine (without) + cera (wax). It seems that sculptors in the ancient world often used a hard, resin like wax, to hide their errors. But every now and then there was the perfect carving, with no wax, nothing phony about it, no coverups.
I thought about these words as I saw this commercial. In the ad the “honor” of engagement draws forth honesty and sincerity. The honesty of one person brings forth the honesty of the other and they both end up more relaxed in each others presence.