I just got around to Stan Carey’s post from last month on a fascinating corner of English morphology:
Editor and historical linguist Brianne Hughes studies a remarkable subset of exocentric compounds called agentive and instrumental exocentric verb-noun (V-N) compounds. Mercifully, and memorably, she calls them cutthroat compounds, or cutthroats for short. These are rare in English word-formation but have a long, colourful history and constitute a very interesting category.
Cutthroat compounds name things or people by describing what they do. A cutthroat cuts throats, a telltale tells tales, a wagtail wags its tail, a killjoy kills joy, a scarecrow scares crows, a turncoat turns their coat, rotgut rots the gut, a pickpocket picks pockets, a sawbones saws bones (one of the few plural by default), and breakfast – lest you miss its etymology, hidden in plain sight – breaks a fast. The verb is always transitive, the noun its direct object.
Despite the familiarity of these examples, only a few dozen are current in modern English. It’s because they conflict with the right-headedness of English, Brianne writes in her master’s thesis (‘From Turncoats To Backstabbers: How Headedness and Word Order Determine the Productivity of Agentive and Instrumental Compounding in English’), that cutthroats’ productivity will never surpass that of ‘backstabber’ compounds, which use the far more usual N-V-er pattern. We’re ‘book readers’, not ‘readbooks’; ‘word lovers’, not ‘lovewords’.
Cutthroats largely constitute ‘a treasury of nonce words’, having peaked centuries ago. Survivors tend to be peripheral, found in slang, regional dialects, and children’s short-lived innovations. But Brianne is on a mission to catalogue them and has recorded several hundred, including such malicious archaic marvels as want-wit (stupid person), spoil-paper (bad writer), whiparse (abusive teacher), eat-bee (bird), lacklooks (unattractive person), stretchgut (glutton), clutchfist (miser), and catch-fart (servant who walks behind their master).
There’s wonderful stuff there (whiparse! catch-fart!) and much more at the link, including the cutthroats spontaneously invented by kids before they grow out of it.