Delgovicia - The 'Backwater'
The earliest known mention of the suspected posting station at Millington probably occurs in the Antonine Itinerary of the late-second century. The First British Itinerary is entitled “from the frontier at the Wall all the way to Praetorio“, wherein the penultimate entry is named Delgovicia and is listed some 13 miles from Derventio (Malton, North Yorkshire) and 25 miles from Praetorium (Bridlington, Humberside). There is a similarly-sounding station named in the Ravenna Cosmology of the seventh century, where a place named Devovicia (R&C#139) appears between the entries for Decuaria (Brough on Humber, Humberside) and Dixio (Whitby, North Yorkshire).
The name Delgovicia / Devovicia is possibly derived from the Latin words devium 'out-of-the-way, devious; straying' and vicinia 'neighbourhood, neighbouring place; neighbours', perhaps with the meaning of 'the out of the way place' or 'backwater', possibly with reference to the large detour from Eburacum recorded in Antonine Iter II, perhaps in order to use a ford over the Derwent at Malton, or to avoid marshland to the east of the Roman colony.
There are no entries in the R.I.B. for Millington.
The Suspected Circular Temple at Millington
MILLINGTON , East Yorkshire: Pavements, tiles, coins of Titus and Gratian, two column bases, 6 ft. fragment of column, two rectangular and one square buildings, also circular foundation 45 ft. diameter, with walls c.5 ft. thick, all in group beside stream. Sounds like massive temple with other shrines or outbuildings.” (Lewis, p.86)
References for Delgovicia – The 'Backwater'
Temples in Roman Britain by M.J.T. Lewis (Cambridge 1966).