in a general sense, denotes something profound, and, as it were, bottomless. The word is originally Greek, αβύσσος; compounded of the privative ά, and βυσσός, bottom; q.d. without a bottom.

in a more particular sense, denotes a deep mass or fund of waters. In this sense, the word is particularly used, in the Septuagint, for the water which God created at the beginning with the earth, which encompassed it round, and which our translators render by deep. Thus it is that darkness is said to have been on the face of the abyss.

Abyss is also used for an immense cavern in the earth, where God collected all those waters on the third day; which, in our version, is rendered the sea, and elsewhere the great deep. Dr Woodward, in his Natural History of the Earth, affirms, That there is a mighty collection of waters inclosed in the bowels of the earth, constituting a huge orb in the interior or central parts of it; and over the surface of this water he supposes the terrestrial strata to be expanded. This, according to him, is what Moses calls the great deep, and what most authors render the great Abyss. The water of this vast Abyss, he affirms, does communicate with that of the ocean, by means of certain hiatus's or chasms passing betwixt it and the bottom of the ocean; and this and the Abyss he supposes to have one common centre, around which the water of both is placed; but so, that the ordinary surface of the Abyss is not level with that of the ocean, nor at so great a distance from the centre as the other, it being for the most part restrained and depressed by the strata of earth lying upon it; but wherever those strata are broken, or so lax and porous that water can pervade them, there the water of the Abyss ascends; fills up all the clefts and fissures into which it can get admittance; and saturates all the interstices and pores of the earth, stone, or other matter, all around the globe, quite up to the level of the ocean.—The existence of an abyss, or receptacle of subterraneous waters, is controverted by Camerarius *; and defended by Dr Woodward, chiefly by two arguments: the first drawn from the vast quantity of water which covered the earth in the time of the deluge; the second, from the consideration of earthquakes, which he endeavours to shew are occasioned by the violence of the waters in this abyss. A great part of the terrestrial globe has been frequently shaken at the same moment; which argues, according to him, that the waters, which were the occasion thereof, were coextended with that part of the globe. There are even instances of universal earthquakes; which (says he) shew, that the whole abyss must have been agitated: for so general an effect must have been produced by as general a cause, and that cause can be nothing but the subterraneous Abyss †.—To this abyss also has been attributed the origin of springs and rivers; the level maintained in the surfaces of different seas; and their not overflowing their banks. To the effluvia emitted from it, some even attribute all the diversities of weather and changes in our atmosphere ‡. Ray §, and other authors, ancient as well as modern, suppose a communication between the Caspian sea and the ocean by means of a subterranean abyss; and to this they attribute it, that the Caspian does not overflow, notwithstanding the great number of large rivers it receives, of which Kemper reckons above 50 in the compass of 60 miles; tho', as to this, others suppose that the daily evaporation may suffice to keep the level.—After all, however, that has been advanced by naturalists concerning this Abyss, its existence remains as yet unestablished by any solid proofs.

Abyss is also used to denote hell. In which sense the word is synonymous with what is otherwise called Barathrum, Erebus, and Tartarus; in the English bible, the bottomless pit. The unclean spirits expelled by Christ, begged, se imperaret ut in abyssum irent, according to the vulgarite; se advenire, according to the Greek. Luke viii. 31. Rev. ix. 1.

Abyss is more particularly used, in antiquity, to denote the temple of Proserpine. It was thus called on account... Abyssinia, account of the immense fund of gold and riches deposited there; some say, hid under ground.

Abyss is also used, in heraldry, to denote the centre of an escutcheon. In which sense, a thing is said to be bore in abyss, or abyssine, when placed in the middle of the shield, clear from any other bearing: He bears azure, a flower de lis, in abyss.