v. Obs. [UNDER-1 8 b.] refl. To live in a manner unworthy of oneself.
1635. Fuller, Ch. Hist., III. vi. 37. No wonder then, if easily they did over-grow others in wealth, who basely did under-live themselves in all convenient accommodations.
1682. Sir T. Browne, Chr. Mor., I. § 24. They who are merely carried on by the Wheel of such Inclinations are rather lived than living, or at least underliving themselves.