● PRONUNCIATION: (GES-ti-mayt
for verb; -muht for noun)
● MEANING: (verb tr.) To make an estimate based on guesswork; (noun) An estimate based on guesswork.
● ETYMOLOGY: A blend of guess + estimate. Earliest documented use: 1936.
● USAGE: “When the measuring cap that comes with the medicine bottle gets gooey and gummed up, the temptation is to grab a kitchen spoon to guesstimate a teaspoon’s worth of liquid medicine. It doesn’t really work.” — Roni Caryn Rabin; Health; International Herald Tribune (Paris, France); Jan 14, 2010.