Why Do We 'Wax Poetic' Instead of Just Talking?

The Evolution of 'Waxing Poetic': From Growing to Glowing

Language is a living artifact, preserving fossilized meanings long after their everyday usage has faded. When we accuse someone of "waxing poetic", we are using a verb that has undergone a remarkable semantic journey over a thousand years.

The Etymological Root: What Does 'Wax' Mean?

Most modern speakers associate the word wax with bees, candles, or the act of removing body hair. However, in the phrase "wax poetic," wax is an archaic verb derived from the Old English weaxan, meaning "to grow," "to increase," or "to become."

Cognate with the German wachsen and the Latin augere (to increase), this version of wax once appeared frequently in descriptions of changing states. For example, the phrase "the moon waxes and wanes" preserves this exact root, meaning the moon grows larger in illumination before shrinking. Therefore, to "wax poetic" literally means to grow into a poetic state or to become increasingly poetic over the course of speech or thought.

Historical Usage and Literature

While the exact pairing "wax poetic" solidified more firmly in American and British English during the 19th and 20th centuries, the construction "to wax [adjective]" has a storied history in English literature.

• William Shakespeare: The Bard frequently employed the verb to describe shifts in mental or emotional states. In Hamlet, Polonius asks, "What is the matter, my lord?" to which Hamlet famously replies, "Words, words, words," prompting Polonius to observe earlier in the text or general usage how characters "wax" wrathful, wise, or foolish.
• The King James Bible: Published in 1611, the text uses the verb extensively to denote growth in physical or spiritual stature, as in Exodus 22:24 ("and my wrath shall wax hot") or Luke 12:55 ("when ye see the south wind blow, ye say, There will be heat; and it cometh to pass"—though wax appears constantly for growing conditions).

Over time, as English modernized, speakers dropped wax from common vocabulary, reserving it almost exclusively for lunar phases and a handful of fixed idioms—with "wax poetic" being the most culturally resilient.

Psychological and Cultural Nuance

Psychologically, when someone begins to wax poetic, they are shifting from pragmatic, utilitarian communication (transactional language) to expressive, associative, and symbolic framing.

• Romanticization: It often signals an emotional elevation. A person looking at a mundane object—like an old fence or a cup of coffee—might suddenly wax poetic, projecting nostalgia, beauty, or philosophical depth onto it.
• Social Perception: Depending on the context, waxing poetic can be viewed charmingly (as eloquence or passion) or pejoratively (as being overly dramatic, pretentious, or out of touch with practical reality).

Ultimately, keeping the phrase alive connects us to centuries of linguistic history, reminding us that whenever our speech grows elevated and artistic, we are participating in an ancient tradition of linguistic growth.