guest

n. [ OE. gest, AS. gæst, gest; akin to OS., D., & G. gast, Icel. gestr, Sw. gäst, Dan. Gjäst, Goth. gasts, Russ. goste, and to L. hostis enemy, stranger; the meaning stranger is the older one, but the root is unknown. Cf. Host an army, Hostile. ] 1. A visitor; a person received and entertained in one's house or at one's table; a visitor entertained without pay. [ 1913 Webster ]

To cheer his guests, whom he had stayed that night. Spenser. [ 1913 Webster ]

True friendship's laws are by this rule exprest.
Welcome the coming, speed the parting guest. Pope. [ 1913 Webster ]

2. A lodger or a boarder at a hotel, lodging house, or boarding house. [ 1913 Webster ]

3. (Zool.) (a) Any insect that lives in the nest of another without compulsion and usually not as a parasite. (b) An inquiline. [ Webster 1913 Suppl. ]