From BiblePortal Wikipedia

Webster's Dictionary [1]

(1): (n.) Fig.: Position as indicating action, feeling, or mood; as, in times of trouble let a nation preserve a firm attitude; one's mental attitude in respect to religion.

(2): (n.) The posture or position of a person or an animal, or the manner in which the parts of his body are disposed; position assumed or studied to serve a purpose; as, a threatening attitude; an attitude of entreaty.

(3): (n.) The posture, action, or disposition of a figure or a statue.

Cyclopedia of Biblical, Theological and Ecclesiastical Literature [2]

From the numerous allusions in Scripture to postures expressive of adoration, supplication, and respect, we learn enough to perceive that the usages of the Hebrews in this respect were very nearly, if not altogether, the same as those which are still practiced in the East, and which the paintings and sculptures of Egypt show to have been of old employed in that country. (See Salutation).

'''I.''' Adoration And Homage The Moslems in their prayers throw themselves successively, and according to an established routine, into the various postures (nine in number) which they deem the most appropriate to the several parts of the service. For the sake of reference and comparison, we have introduced them all at the head of this article; as we have no doubt that the Hebrews employed on one, occasion or another nearly all the various postures which the Moslems exhibit on one occasion. This is the chief difference. (See Lane's Arabian Nights, passim; Mod. Egyptians, 1, 105 sq.; Thomson's Land and Book, 1, 26.) In public and common worship the Hebrews prayed standing ( 1 Kings 8:54;  Ezra 9:5;  Daniel 6:10;  2 Chronicles 6:13); but in their separate and private acts of worship they assumed the position which, according to their modes of doing homage or showing respect, seemed to them the most suitable to their present feelings or objects. It would appear, however, that some form of kneeling was most usual in private devotions. (See Adoration).