Lust, n.
Etymology: [AS. lust, lust, pleasure, longing; akin to OS., D., G., & Sw. lust, Dan. & Icel. lyst, Goth lustus, and perh. tom Skr. lush to desire, or to E. loose. Cf. List to please, Listless.]
1. Pleasure [Obs.] " Lust and jollity." Chaucer.
2. Inclination; desire. [Obs.] For little lust had she to talk of aught. Spenser. My lust to devotion is little. Bp. Hall.
3. Longing desire; eagerness to possess or enjoy; -- in a had sense; as, the lust of gain. The lust of reigning. Milton.
4. Licentious craving; sexual appetite. Milton.
1 more senses
5. Hence: Virility; vigor; active power. [Obs.] Bacon.
1 other Webster entry under this spelling
Lust, v. i. [imp. & p. p. Lusted; p. pr. & vb. n. Lusting.]
1. To list; to like. [Obs.] Chaucer. " Do so if thou lust. " Latimer.
Note: In earlier usage lust was impersonal. In the water vessel he it cast When that him luste. Chaucer.
2. To have an eager, passionate, and especially an inordinate or sinful desire, as for the gratification of the sexual appetite or of covetousness; -- often with after. Whatsoever thy soul lusteth after. Deut. xii. 15. Whosoever looketh on a woman to lust after her, hath committed adultery with her already in his heart. Matt. v. 28. The spirit that dwelleth in us lusteth to envy. James iv. 5.
Shades of meaning
Fernald has no entry of its own for lust; he lists it under appetite.
He lists it without comment; the entries above explain its neighbors.