UTAS

U″tas (?), n. [[OF. huitieves, witieves, witaves, oitieves, pl. of huitieve, witieve, etc., eighth, L. octavus. See Octave, n.]] [Written also utis.] 1. 1. (O. Eng. Law) The eighth day after any term or feast; the octave; as, the utas of St. Michael. Cowell.
The marriage was celebrated and Canterbury, and in the utas of St. Hilary next ensuing she was crowned. Holinshed. 2. 2. Hence, festivity; merriment. Shak.