Tenable
Pronunciation : Ten"a*ble
Part of Speech : a.
Etymology : [F. tenable, fr. tenir to hold, L. tenere. See Thin, and cf. Continue, Continent, Entertain, Maintain, Tenant, Tent.]
Definition : Defn: Capable of being held, naintained, or defended, as against an assailant or objector, or againts attempts to take or process; as, a tenable fortress, a tenable argument. If you have hitherto concealed his sight, Let it be tenable in your silence still. Shak. I would be the last man in the world to give up his cause when it was tenable. Sir W. Scott.
Source : Webster's Unabridged Dictionary, 1913