Summary

Jakob Jakobsen An Etymological Dictionary of the Norn Language in Shetland…

Nowadays eder most often means a kind of mythical fish, feared by fishermen, as it is said to be able to perforate their boats when at sea (thus e.g. in the N.I.) . The phrase “to fly like a (n) eder”, to make rapid headway, is used in several places, e.g. on Wests. and in the N.I. From Esh., Nmw., “de eder” is reported as a name for the sea-serpent, and in Un. eder is occas.
Source: Wikisource

Jakob Jakobsen An Etymological Dictionary of the Norn Language in Shetland…

The form est- replaces an older *øst through infl. of Eng. “east”. The suffix -en, -in, corresponds to O.N., -an. Otherwise, -ten, -tin, suffixed to words (names) , must sometimes be accepted as O.N. þing, n., council; district; see *ting, sb. While “de wasten”, similar to “de esten, de norden”, must be supposed to be an old “vestan”, wastin (U.) , without def. art., seems to be an old *vest (r) -þing, all the more so, as Wasten, Wastin, written “Westing”, is used as the name of a much more limited district than “ (de) esten, norden, sudin”.
Source: Wikisource

Jakob Jakobsen An Etymological Dictionary of the Norn Language in Shetland…

More common than the forms given is atri [atri, ātri] , “a. wadder”, from L.Sc. “atry, attrie”, adj., a) festering; b) stern; grim; c) irritable; peevish. The modes of pronunc. “äƫ (ə) ri, äitri” may spring from both etri and atri. atersom [ā··tərsȯm] , “a. wadder”, noted down in Unst, is a mingling of etersom and atri. Cf. eter and eterskab, sbs.
Eti [ēti] , sb., in the phrase: “Goni [gȯni] E.”, name of a goblin, male or female, with which children are threatened. “Goni E. will tak’ dee!” Sa. Perhaps really the eating one, he who eats children?
Source: Wikisource

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