adorable adj.

late 14c., aouren, "to worship, pay divine honors to, bow down before," from Old French aorer "to adore, worship, praise" (10c., later adorer), from Latin adorare "speak to formally, beseech, entreat, ask in prayer," in Late Latin "to worship," literally "to call to," from ad "to" (see ad-) + ōrare "speak formally, pray" (see orator).

The meaning "to honor very highly" is attested from 1590s; the weakened sense of "to be very fond of" emerged by 1880s. Related: Adored; adoring.