ANNEX’, v. t. [L. annecto, annexum; Fr. annexer; of ad and necto, to tie, or connect.]
1.    To unite at the end; as to annex a codicil to a will. To subjoin, to affix.
2.    To unite, as a smaller thing to a greater; as to annex a province to a kingdom.
3.    To unite to something preceding, as the main object; to connect with; as to annex a penalty to a prohibition, or punishment to guilt.
American Dictionary of the English Language, Noah Webster 1828, Vol. I., page 9.

ANNEX’, n. i. To join; to be united. Tooke.
American Dictionary of the English Language, Noah Webster 1828, Vol. I., page 9.

ANNEXA’TION, n. The act of annexing, or uniting at the end; conjunction; addition; the act of connecting; union. In English law, the uniting of lands or rents to the crown.
American Dictionary of the English Language, Noah Webster 1828, Vol. I., page 9.

ANNEXATION. The union of one thing to another.
    It conveys the idea, properly, of fastening a smaller thing to a larger; an incident to a principal. It has been applied to denote the union of Texas to the United States.
    Actual annexation includes every movement by which a chattel can be joined or united to a freehold. Mere juxtaposition, or laying on of an object, however heavy, does not amount to annexation; Merritt v. Judd, 14 Cal. 64.
    Constructive annexation is the union of such things as have been holden parcel of realty, but which are not actually annexed, fixed, or fastened to the freehold. Sheppard, Touchst. 469; Amos & F. Fixt. 3^rd ed. See Fixtures.
Bouvier’s Law Dictionary, Third Revision (8^th Edition)(1914), Volume I, page 200.

annex (ä-neks’). To attach; to join on; to affix.
Law Dictionary, James A. Ballentine, Second Edition, 1948, page 83.

Annexation (an-eks-ä’shon). “Annexed” to the freehold means fastened to it or connected with it; mere juxtaposition, or the laying of an object, however heavy, on the freehold does not amount to annexation; See Merritt v. Judd, 14 Cal. 64.
    One of the requisites to convert a chattel into a part of the realty is that it must be the intent of the party making the annexation, to make a permanent accession to the freehold, which will be implied, if he erects such structures as ordinarily attach to the land, without agreement to the contrary with the owner. See Wood v. Holly Manufacturing Co. 100 Ala. 326, 46 Am. St. Rep. 56.
Law Dictionary, James A. Ballentine, Second Edition, 1948. Page 83.

annexation de facto (an-eks-ä’shon dë fak’-to). The attempted annexation of a territory to a municipality wherein facts essential to jurisdiction over the proceedings are wholly wanting.
Law Dictionary, James A. Ballentine, Second Edition, 1948, page 83.

ANNEX. Derived from the Latin “annectere,” meaning to tie or bind to. To attach, and often, specifically, to subjoin. In re Annexation to City of Easton of Tract of land in Williams Tp., Northampton County, 139 Pa.Super. 146, 11 A.2d 662, 664. To add to; to unite. The word expresses the idea of joining a smaller or subordinate thing with another, larger, or higher importance. Waterbury Lumber & Coal Co. v. Asterchinsky, 87 Conn. 316, 87 A. 739, 740, Ann.Cas. 1916B, 613. To consoildate, as school districts. Evans v. Hurlburt, 117 Or. 274, 243 P. 553, 554. To make an integral part of something larger.
    It implies physical connection or physically joined to, yet physical connection may be dispensed with, and things may be annexed without being in actual contact, when reasonable practicable. Elliott Common School Dist. No. 48 v. County Board of School Trustees, Tex.Civ.App., 76 S.W.2d. 786, 789.
    In the law relating to fixtures, the expression “annexed to the freehold” means fastened to or connected with it; mere juxtaposition, or the laying of an object, however heavy, on the freehold does not amount to annexation. See Merritt v. Judd, 14 Cal. 64.
Black’s Law Dictionary 4^th Edition (1951), page 115.

ANNEXATION. The act of attaching, adding, joining, or uniting on thing with another; generally spoken of connection of a smaller or subordinate thing with a larger or principal thing.
    The attaching an illustrative or auxiliary document to a deposition, pleading, deed, etc., is called “annexing” it. So the incorporation of newly-acquired territory into the national domain, as an integral part thereof, is called “annexation,” as in the case of the addition of Texas to the United States.
    In the law relating to fixtures: Actual annexation includes every movement by which a chattel can be joined or united to a freehold. Constructive annexation is the union of such things as have been holden parcel of realty, but which are not actually annexed, fixed, or fastened to the freehold. Sheppard, Touchst. 469; Amos & F. Fixt. 2.

annex (a neks’, a-; for n., an’eks’) vt. [[ME annexen < OFr annexer < L annexus, pp. of annectere < ad-, to + nectere, to tie, bind: see net¹ 1 to add on or attach, as a smaller thing to a larger; append 2 to add to as a condition, consequence, etc. 3 to incorporate into a country, state, etc. the territory of (another country, state, etc.) 4 to take or appropriate, esp. without asking 5 [Archaic] to join; connect –n. something added on; specif., a) a wing added to a building b) a nearby building used as an addition to the main building c) a section added as to a document; addendum –annex|ation (an-eks-ä’shon, -iks-) n. –an’nex|ation-ist n.
Webster’s New World Dictionary, 3^rd College Ed. (1988), page 56.