Webster’s Revised Unabridged Dictionary · 1913
Hectic
Hec′tic (hĕk′tĭk), a. [F. hectique, Gr. ἑκτικός habitual, consumptive, fr. ἕξις habit, a habit of body or mind, fr. ἔχειν to have; akin to Skr. sah to overpower, endure; cf. AS. sige, sigor, victory, G. sieg, Goth. sigis. Cf. Scheme.] 1. Habitual; constitutional; pertaining especially to slow waste of animal tissue, as in consumption; as, a hectic type in disease; a hectic flush.
2. In a hectic condition; having hectic fever; consumptive; as, a hectic patient.
Hectic fever (Med.), a fever of irritation and debility, occurring usually at a advanced stage of exhausting disease, as a in pulmonary consumption.
Hec′tic, n. 1. (Med.) Hectic fever.
2. A hectic flush.
It is no living hue, but a strange hectic. Byron.