intestine

Etymology 1

From Latin intestīnum, neuter of intestīnus (“internal”), as Etymology 2, below.

noun

1. (anatomy, often pluralized) The alimentary canal of an animal through which food passes after having passed all stomachs.
2. One of certain subdivisions of this part of the alimentary canal, such as the small or large intestine in human beings.

Etymology 2

From Latin intestīnus (“internal”), from intus (“within”).

adj

1. Domestic; taking place within a given country or region.
   It being true that now after fiue yeeres intestine warre with the reuengefull implacable Indians, a firme peace (not againe easily to be broken) hath bin lately concluded[…]. 1615, Ralph Hamor, A True Discourse of the Present State of Virginia, Richmond, published 1957, page 2
   The subdivisions of the tribe have elders over them, to whose authority they frequently pay much more deference than to that of their Chan: they are appointed by popular election, and where distinguished by birth or affluence are called beys, elders, tarchans, or batuers; but if their conduct be such as to displease their constituents, they are deposed, and their office transferred to some other party—the natural consequence of these changes is intestine confusion and anarchy, and open defiance of the authority of the Chan and his council. 1840 August, “Asia”, in The United Service Magazine, volume 33, number 141, page 537
   Now will any sensible person assert that five millions of Southerners, allowing all her white population to be in favor of Slavery, with an intestine foe, ready to spring upon her, as soon as the last chance of freedom presents itself, will be in danger of fighting twelve millions of free Northerners, who can call to their aid all these, and numerous other allies. 1849, Henry Box Brown, Narrative of H. B. Brown who escaped from slavery enclosed in a box, page 88
   In the speech attributed to him in More's History of King Richard the Third: Buckingham argues that war is never so mischievous as when it is intestine. 1952, George Norman Clark, John Duncan Mackie, The Earlier Tudors, 1485-1558, page 10
2. (obsolete) Internal.
   a perpetual intestine struggle[…]between authority and liberty a. 1776, David Hume, Of the Origin of Government
   If you wish this state to be immortal, if you wish your empire to be eternal, if you with your glory to continue everlasting, then it is our own passions, it is the turbulence and desire of revolution engendered among our own citizens, it is intestine evil, it is domestic plots that must be guarded against. 2016, Benjamin Straumann, Crisis and Constitutionalism
3. (obsolete, rare) Depending upon the internal constitution of a body or entity; subjective.
   There dwells in the hearts of all who are deeply sunk in hypocrisy, an intestine hatred against all who are truly spiritual; 1869, Emanuel Swedenborg, The True Christian Religion, page 498
4. (obsolete, rare) Shut up; enclosed.
   No thunders shook with deep intestine sound The blooming groves that girdled her around. 1782, William Cowper, “Heroism”, in Poems by William Cowper, of the Inner Temple, Esq.
   Where now the vital energy that moved, While summer was, the pure and subtle lymph Through the imperceptible meandering veins Of leaf and flower? It sleeps; and the icy touch Of unprolific winter has impress'd A cold stagnation on the intestine tide. 1785, William Cowper, The Task
   (see title) 1988, Jackie DiSalvo, “Intestine Thorn: Samson's Struggle with the Woman Within”, in Julia M. Walker, editor, Milton and the Idea of Woman, page 211
   Lambarde's metaphor seems to be slipping here, as he admits that the worst enemies are 'intestine', within the walls, so to speak, or even within the 'body' of the nation. 2012, Rebecca Brackmann, The Elizabethan Invention of Anglo-Saxon England, page 212