noun
Informal. a person, thing, action, or statement of remarkable excellence or effect.
The origin of humdinger is speculative. It was originally American slang, first appearing in print at the beginning of the 20th century and in British English about 1926.
… Beethoven gave the Viennese a humdinger, something to make them sit up and take notice.
Streep, whose speeches are perfect, delivered a humdinger of a tribute to Emma Thompson, who was receiving the best-actress honor, for “Saving Mr. Banks.”
adjective
sincere and undivided in feeling or spirit; dedicated; not reflecting mixed emotions: He was single-hearted in his patriotism.
Single-hearted was first recorded in 1570–80.
Whatever becomes of me, I shall remember always this single-hearted devotion of yours, Margaret, and I shall thank God that I know of it and love you for it.
… one gets what one goes after with single-hearted purpose, but otherwise not.
noun
Rhetoric. the repetition of a word or phrase to gain special emphasis or to indicate an extension of meaning, as in Ex. 3:14: “I am that I am.”
The uncommon English rhetorical term ploce comes via Late Latin plocē from Greek plokḗ, a noun with many meanings: “twining, twisting, braid; complication (of a dramatic plot); construction (of a syllogism); web, web of deceit; (in biology) histological structure; (in rhetoric) repetition of the same word in close succession in a slightly different sense or for emphasis” (e.g., “A man should act like a man”). Greek plokḗ comes from the verb plékein “to weave, braid, twine,” from the Proto-Indo-European root plek-, plok-, source of Latin plicāre “to fold, bend, roll, twine” and the combining form -plex, used in forming numerals, e.g. simplex, duplex, triplex (equivalent to English -fold). The Proto-Indo-European neuter noun ploksom becomes flahsam in Germanic and flax in English. In Slavic (Polish), plek- forms the verb pleść “to plait, weave.” Ploce entered English in the 16th century.
Ploce is the repetition of the same word under different forms or with different meanings in the same sentence…. as–“Judge not, that ye be not judged.”
There he found examples of such figures or tropes as synechdoche, metonymy, meiosis, amplification, ploce, polyptoton, etc., all designed to enhance the style of the would-be poet and preacher.