équerrecommon nounverbSyllable DecompositionéquerreEtymologyexpandfrom Old French esquire (square), derived from Vulgar Latin exquadra, from exquadrare ('to square').Definitions1. First person singular of the indicative present of équerrer.expand2. Third person singular of the indicative present of équerrer.expand3. First person singular of the subjunctive present of équerrer.expand4. Third person singular of the subjunctive present of équerrer.expand5. Second person singular of the imperative of équerrer.expandSee alsoéquerres (v.) équerre (cn.)