1570s, from French inhérence (15c.) or directly from Medieval Latin inhaerentia, from inhaerentem (see inherent). Related: Inherency (c. 1600).

also self worth, "worth inherent in oneself," 1650s, from self + worth (n.).

"power, inherent strength, ability to accomplish or effect," mid-15c., potencie, from Latin potentia "power," from potentem "potent," from potis "powerful, able, capable," from PIE root *poti- "powerful; lord." 

1570s, "want of power, strength, or ability," from dis- + ability. Meaning "incapacity in the eyes of the law" is from 1640s. Related: Disabilities.

Disability implies deprivation or loss of power; inability indicates rather inherent want of power. [Century Dictionary]

"inherent fitness for all ends and purposes and independence of others," 1620s, originally also an attribute of God (translating Greek autakreia); see self + sufficiency. Of mortals, "ability to supply one's own needs," it is implied by 1580s (compare self-sufficient). Sometimes formerly also "an overweening opinion of one's talent or worth" (1690s).

1550s, "a disowning," from Latin abdicationem (nominative abdicatio) "voluntary renunciation, abdication," noun of action from past-participle stem of abdicare "disown, disavow, reject," from ab "off, away from" (see ab-) + dicare "proclaim" (from PIE root *deik- "to show," also "pronounce solemnly," and see diction). Sense of "resignation of inherent sovereignty" is from 1680s.