These play a more important part in Highland superstition than even the seasons of the year. The names by which they are known are not Celtic; two, Wednesday and Thursday, are of Scandinavian or Teutonic origin, and the rest are from the Latin. The superstitions, as might be expected, can in most cases be traced directly to incidents in Scripture history. The division of time into weeks was introduced with the Christian religion from Ireland, and the Irish must be held responsible for the names adopted. Neither in the names nor in the superstitions is there any trace of an age anterior to Christianity. _Dĭ_, which is prefixed to each name, in the sense of _day_, is kindred with the Latin _dies_, and occurs in slightly modified forms in all the Celtic dialects. It is curious that in Gaelic it occurs in no other form or combination in the sense of “day,” and a suspicion is thereby created that it is merely an adaptation of the Latin word, an easier adaptation, because there are words of similar sound and kindred meaning in Gaelic. _Di-dòmhnaich_, SUNDAY (_dies Domini_). The name _Dòmhnach_ for our Lord is not common. It is evidently derived from the Latin _Dominus_. It occurs in the proper name _Maol-Dòmhnaich_ Ludovic, lit. the bald one (_i.e._ the shaven priest) of our Lord, a name still to be found in Skye, and formed like _Maol-Mhoire_, Miles (lit. the priest of St. Mary), _Maol-Ciaran_, _Maol-Ruainidh_, etc. There is a streamlet near Strowan, in Blair Athole, called _allt Dòmhnach_, the streamlet of our Lord; and a _Tobar an Dòmhnach_, the well of our Lord, in Balmeanach, in the west of Tiree. In a charm for fulling cloth the expression occurs, “if he (the wearer of the cloth) enter field or fight, the full succour of our Lord be his” (_Slàn chomraich an Dòmhnach da_). The day is also known as “_an Dòmhnach_” without the prefix of _di_. Other names are those occurring in Scripture, Sabbath, etc. The plant pulled on Sunday is, according to a proverbial expression, without good or harm (_luibh an Dòmhnach gun mhath gun chron_). _Di-luain_, MONDAY. _Luain_ is said in dictionaries to be a Gaelic name for the moon, agreeing in origin with the Latin _luna_. It is used only in the name of this day, and in the expression _la luain_, a poetic phrase for Monday come-never, _i.e._ “never more.” The adjective _luaineach_, restless, is supposed to be derived from it, but is a word never applied to the moon. It applies to whatever moves restlessly by fits and starts, from place to place, without staying long in one place, and never to anything on account of change of shape or form. Its derivation from _la uaine_, green day, is absurd, and there are grounds for suspicion, that _luain_ is a word manufactured by ancient Gaelic grammarians from the Latin.