letdown
Meaning
a disappointment or a failure to meet expectations
a release of milk from a woman's breast when feeding a baby
Structure
Usage
The movie's ending was a real letdown after such a promising start.
She tried not to show her letdown when the planned trip was cancelled.
The letdown reflex is an important part of the breastfeeding process.
Etymology
The compound noun 'letdown' is a transparent combination of the verb 'let' and the adverb 'down', following a common Germanic pattern for forming nouns from phrasal verbs. The literal sense, 'to let something down,' originally meant to lower or slacken something physically, such as a rope or one's guard. By the mid-18th century, this concrete action was metaphorically extended to describe a feeling of being lowered in spirit or expectation, giving rise to the primary modern meaning of a disappointment. The physiological sense, referring to the release of breast milk, emerged in the early 20th century, drawing on the same core idea of a release or lowering of pressure.
Analysis
- let: From Old English lǣtan (to allow, to leave behind). Functional role: verb root meaning to cause or allow an action. - down: From Old English dūne (from the hill), a variant of of dūne (from the hill). Functional role: adverbial particle indicating a downward direction or a lower state.