Est vs. Ost: What's the Difference?
Est and Ost Definitions
(obsolete) Grace; favour.
Alternative form of oast
Abbreviation of established
Init of w:Erhard Seminars Training, a course intended to promote satisfaction with life in the present moment, as opposed to strivings to attain it.
Standard time in the 5th time zone west of Greenwich, reckoned at the 75th meridian; used in the eastern United States