“depth” in Latin

altitudo (depth, as a quality): profunditas (depth, as a property; though not used by ancient writers, it is analogically formed, and may be retained wherever perspicuity requires it): profundum: altum (depths of the sea; hardly, except where mare, locus, etc. can be supplied; e.g., jecissem me potius in profundum, sc. mare, into the depths of the sea): vorago (an abyss): latitudo (horizontal depth from face to back; breadth, opposed to longitudo): vocis genus grave (depth of voice or sound): recessus (that which retires back; e.g., recessus oris, etc.): depths, loca in mirandam altitudinem depressa: the depths of a forest, silvarum profunda (Tac.): the depth of the stream, altitudo fluminis: the immense depth (of a river), profunda altitudo (Tac.): the depth of the sea, altitudo maris (as a property); profundum maris (the bottom of the sea): to cast one’s self into the depths of the sea, praecipitare (without design); se jacere in profundum (with design): to be out of one’s depth, in profundo esse; solo or vado fugiente destitui aliquem vadum destituit (Liv. 21, 28): to be afraid of getting out of one’s depth, timere altitudinem (Liv. 21, 28): the house is thirty feet in depth, domus triginta pedes in latitudinem exstructa est; domus triginta pedes lata est.

Depth of character, altitudo ingenii; of soul, altitudo animi (βαθύτης; Vid: Beier, Cic., Off., 1, 25, 88): the depth of the Divine wisdom, summa Dei sapientia. ☞ Neither profunditas, nor profundum, nor altitudo can be used for “depth of learning,” “depth of intellect,” etc.; but either subtilitas or acumen ingenii, or circumlocution, ingenium subtile; litterae non vulgares, sed interiores quaedam et reconditae, etc.

Middle; in the depth of the night, media nocte: the depth of winter, summa hiems: it was the depth of winter, the weather being very cold and rainy, erat hiems summa, tempestas perfrigida, imber maximus (Cic.).