aesthetic:  In strict etymological terms, aesthetic relates to perception via the senses. It comes ultimately from the Greek verb aísthesthai ‘perceive’ (which is related to Latin audīre ‘hear’), and this meaning is preserved in anaesthetic, literally ‘without feeling’. The derived adjective aisthētikós reached Western Europe via modern Latin aesthēticus, and was first used (in its Germanized form ästhetisch) in the writings of the philosopher Immanuel Kant (1724–1804).
Here, it retained its original sense, ‘perceptual’, but its use by A T Baumgarten as the title (Æsthetica) of a work on the theory of beauty in art (1750) soon led to its adoption in its now generally accepted meaning. => audible, audition
1798, from German Ästhetisch or French esthétique, both from Greek aisthetikos "sensitive, perceptive," from aisthanesthai "to perceive (by the senses or by the mind), to feel," from PIE *awis-dh-yo-, from root *au- "to perceive" (see audience).
Popularized in English by translation of Immanuel Kant, and used originally in the classically correct sense "the science which treats of the conditions of sensuous perception." Kant had tried to correct the term after Alexander Baumgarten had taken it in German to mean "criticism of taste" (1750s), but Baumgarten's sense attained popularity in English c. 1830s (despite scholarly resistance) and removed the word from any philosophical base. Walter Pater used it (1868) to describe the late 19c. movement that advocated "art for art's sake," which further blurred the sense. As an adjective by 1803. Related: Aesthetically.
1. He responded very strongly to the aesthetic of this particular work.
2. an aesthetic appreciation of the landscape
3. From an aesthetic point of view it's a thetic view.
4. One's appreciation of literature depends on one's level of aesthetic knowledge.
5. That armchair is comfortable but not very aesthetic.