(in vexillology) to remove (a flag) ceremonially from its protective casing in preparation for unfurling and displaying it
uncase in American English
(unˈkeis)
transitive verbWord forms: -cased, -casing
1.
to remove from a case; remove the case from
2.
to remove the cover from; put on view
3.
to make known; reveal
Word origin
[1560–70; un-2 + case2]This word is first recorded in the period 1560–70. Other words that entered Englishat around the same time include: clinch, cylinder, event, propagate, sympathyun- is a prefix freely used in English to form verbs expressing a reversal of some actionor state, or removal, deprivation, release, etc. (unbend; uncork; unfasten; etc.), or to intensify the force of a verb already having such a meaning (unloose)