Douglas Harper's Etymology Dictionary
"reception of visitors," 1745, from phrase at home.
Usage examples of "at-home".
Sandra must have been logged on to do some at-home banking when she'd been interrupted by the deliveryman.
Pett's at-homes and one which assisted that mental broadening process already alluded to that one never knew, when listening to a discussion on the sincerity of Oscar Wilde, whether it would not suddenly change in the middle of a sentence to an argument on the inner meaning of the Russian Ballet.
Lanier had never been in Hoffman's at-home work area before and now, in the video's cool light, he inspected the shelves of memory blocks, the broad, empty desk with its basic secretary's chair, the compact word processor beneath the video.