Alderney late 300s, at above the island's only natural harbour. The etymology of the island's name is obscure. It is known in Latin as "Riduna" but as with the names of all the Channel Islands in the Roman period there is a degree of confusion. "Riduna" may be the original name of Tatihou, while Alderney is conjectured to be identified with "Sarnia". "Alderney"/"Aurigny" is variously supposed to be a Germanic or Celtic name. It may be a corruption of "Adreni" or "Alrene", which is probably derived from an Old Norse word meaning "island near the coast". Alternatively it may derive from
Aurigny two-week trial in November 2013. Aurigny announced on 17 April 2014 that it would retire its five Trislanders and replace them with three second-hand Dornier Do 228s, noting that "the cost of keeping them [Trislanders] in the air is now prohibitively expensive". The programme to replace the Trislanders was expected to cost £3 million, with the airline asking the States of Guernsey for a loan in order to fund its Dornier acquisition. Aurigny's flagship Trislander aircraft nicknamed "Joey", after its registration "G-JOEY", gained great affection over time and a campaign was established to have "Joey" put on display in Guernsey