different between upbuild vs unbuild

English

Etymology

up- +? build

Verb

upbuild (third-person singular simple present upbuilds, present participle upbuilding, simple past and past participle upbuilt or upbuilded)

1. (transitive) To build up (literally).
   • 1876, in the American Journal of Science, volume 111, page 299 [1]:

     […] under all circumstances, whether the surface be uppushed by horizontal mashing of sediments or upbuilt by the outsqueezing of melted matter, the increase of height would be the same […]

   • 1976, William Morris Davis, The coral reef problem:

     These three islands therefore exemplify, after a fashion, the Rein-Murray theory of oceanic banks, upbuilt by pelagic deposits, as atoll foundations.

2. (transitive) To build up; to develop (figuratively).
   • 1904, in The Outlook, volume 76, page 616 [2]:

     Briefly, the Republic, as he sees it, was upbuilt by a cunningly manipulated political machine that reared a seemingly solid superstructure on the false foundation of the interests of a class rather than of the people.

   • 1908, in the American poultry advocate, volume 17, page 363 [3]:

     It is certain that the laying traits can be up-built by breeding from the heavy layers, just as the milk producing qualities have been built up by breeding from great milk producers; […]

   • 20002, in Kierkegaard's upbuilding discourses: philosophy, theology, literature (George Pattison), page 26 [4]:

     The cultured, on the other hand, are only upbuilt by forgetting about the petty, individual circumstances of life: […]

Anagrams

• build up, build-up, buildup

English

Etymology

un- +? build

Verb

unbuild (third-person singular simple present unbuilds, present participle unbuilding, simple past and past participle unbuilt)

1. (transitive) To dismantle or deconstruct (something previously built).
   • 2003, Barbara Damrosch, The Garden Primer (page 5)

     Anything you build or plant on your neighbor's land you might have to unbuild or unplant in the future.