The Collaborative International Dictionary
Etymological \Et`y*mo*log"ic*al\ (-m[-o]*l[o^]j"[i^]*kal), a. [L. etymologicus, Gr. 'etymologiko`s: cf. F. ['e]tymologique. See Etymology.] Pertaining to etymology, or the derivation of words. -- Et`y*mo*log"ic*al*ly, adv. [1913 Webster] ||
Wiktionary
adv. (context domain English) Based on or belonging to etymology
Usage examples of "etymologically".
A white amaurosis, apart from being etymologically a contradiction, would also be a neurological impossibility, since the brain, which would be unable to perceive the images, forms and colours of reality, would likewise be incapable, in a manner of speaking, of being covered in white, a continuous white, like a white painting without tonalities, the colours, forms and images that reality itself might present to someone with normal vision, however difficult it may be to speak, with any accuracy, of normal vision.
To take one simple example: the name of the Indian god Varuna has been identified etymologically with that of the Graeco-Roman god Uranus (Greek, Ouranos), also a common noun for 'heaven'.