That has been in existence for a long time.

Alternative form of reestablishment.

plural of peace establishment

The reduced military force maintained in peacetime.

Third-person singular simple present indicative form of re-establish

simple past tense and past participle of re-establish

Having been established for a long period of time. / Well-known.

(hydrography) A datum on which the tides are computed at the given port, obtained by observation. It is the interval between the Moon's passage over the meridian and the time of high water at the port, on the days of new moon and full moon.

(botany) A special form of seedling growth in arboraceous monocotyledons, during which the longitudinal axis of the stem expands to reach its final girth. After achieving the definitive basal diameter, the stem elongates, maintaining a nearly cylindrical form.

Alternative letter-case form of Establishment Clause