Webster’s Revised Unabridged Dictionary · 1913
Ostensible
Os·ten′si·ble (ŏs·tĕn′sĭ·b'l), a. [From L. ostensus, p. p. of ostendere to show, prop., to stretch out before; fr. prefix obs- (old form of ob-) + tendere to stretch. See Tend.]
1. Capable of being shown; proper or intended to be shown. [R.] Walpole.
2. Shown; exhibited; declared; avowed; professed; apparent; — often used as opposed to real or actual; as, an ostensible reason, motive, or aim. D. Ramsay.