One of yesterday's NYT crossword clues was "the handsaw in Hamlet's 'I know a hawk from a handsaw.'" (5 letters) I had to work around sideways to discover the answer as "heron" - which prompted a visit to some online sources.
Hamlet, Act 2, Scene 2: "I am but mad north-northwest. When the wind is southerly, I know a hawk from a hand saw."
Modern footnotes offer "A hand saw is very different from a hawk. Even in his disturbed emotional state, Hamlet can see the obvious, that Rosencrantz and Guildenstern are agents of the king and queen." So I accepted that 50 years ago, assuming that a handsaw was a carpentry tool.
But the crossword clue forced me to dive more deeply: "handsaw" is the obsolete (Shakespearean) version of "heronsaw," a term applied to young herons, because it comes from Middle English heronsewe, from Old French haironcel, diminutive of heiron.
You learn something every day.











