In Middle English it was exclusively in historical use, or in reference to the inhabitants of Brittany (see Breton); it was revived when James I was proclaimed King of Great Britain in 1604, and made official at the union of England and Scotland in 1707.
"involving or characterized by prudence," mid-15c., prudencial, from Medieval Latin prudentialis, from Latin prudentia "a foreseeing, foresight" (see prudence). Related: Prudentially.
Prudential, the U.S. insurance company, dates to the 1870s; its logo featuring the Rock of Gibraltar dates from c. 1900 and was widely known 20c. The Prudential of Great Britain is a different company, founded 1848 to provide loans to professional and working people, noted for its door-to-door agents ("the Man from the Pru").
fifth month of the modern calendar, early 12c., Mai, from Old French mai and directly from Latin Majus, Maius mensis "month of May," possibly from Maja, Maia, a Roman earth goddess (wife of Vulcan) whose name is of unknown origin; possibly from PIE *mag-ya "she who is great," fem. suffixed form of root *meg- "great" (cognate with Latin magnus).
"[R]eckoned on the continent of Europe and in America as the last month of spring, but in Great Britain as the first of summer" [Century Dictionary, 1897]. Replaced Old English þrimilce, month in which cows can be milked three times a day. May marriages have been considered unlucky at least since Ovid's day. May-apple, perennial herb native to North America, so called for its time of blooming and its yellowish fruit, is attested from 1733, American English.
The Boer War (1899-1902), in which Great Britain defeated the South African Republic of Transvaal and Orange Free State, was technically the Second Boer War, there having been a brief preview 1880-1881.