Hoghenhine.

From this Facebook post by Sarah Thomason I learned the word hoghenhine; OED (entry revised 2010): Law. historical. A person who has stayed in a household for three nights, and so becomes the legal responsibility of the host; a member of a household; a dependant. 1607 Hoghenhine, is he that commeth guestwise to a house, and lieth there the third night. After which time he is accounted of his familie in whose house he lieth. J. Cowell, Interpreter sig. Mm2ᵛ/1 1630 He which commeth guest-wise to an house..the third night, is called an Hoghenhine (or Agenhine;)..and if he offend the Kings Peace, his Oast must be answerable for him. M. Dalton, Countrey Justice (revised edition) xl. 98 1753 Agenhine, in our old writers, signifies a guest that has lodged at an inn for three nights, after which time he is accounted one of the family. Chambers’s Cyclopædia Suppl. (at cited word) 1848 The third night, an agenhinde, a domestic. J. J. S. Wharton, Law Lexicon 662/2 1959 Agenhine, otherwise, but…