parergron
n.— «When we apprehend the auditor’s mediating role, we have to reconnect the speaker’s main point (ergon) with what is beside the point (parergon), but the poem itself never confirms that our framing is accurate.» —“Browning’s ‘My Last Duchess’: Paragon and parergon” by Joseph A. Dupras Papers on Language and Literature Winter, 1996. (source: Double-Tongued Dictionary)
Further reading
If you start the phrase when in Rome… but don’t finish the sentence with do as the Romans do, or say birds of a feather… without adding flock together, you’re engaging in anapodoton, a term of rhetoric that refers to the...
Chris from Kittery, Maine, wonders about the colloquial expression no sirree, Bob! or yes sirree, Bob!, which is an emphatic way of saying “definitely not!” or “no way!” The sirree (sometimes spelled with one r, as siree) in...