νοσέω, -ῶ (< νόσος), [in LXX (metaph.): Wis.17:8 * ;] to be sick: metaph., of mental ailment, before περί, 1Ti.6:4 (cf. Plat., Mor., 546 d).† (AS)
Thayer:
1) to be sick 2) metaph. of any ailment of the mind 2a) to be taken with such an interest in a thing as amounts to a disease, to have a morbid fondness for
νοσέω
noseō
nos-eh'-o
From G3554; to besick, that is, (by implication of a diseased appetite) to hanker after (figuratively to harp upon)