6 letters · 6 points in Scrabble
noun a nervous restrained laugh
verb laugh nervously
originFirst attested in the 1610s. Probably from Middle English *titeren, *titren (attested in Middle English titering (“hesitation, vacillation”)), probably a frequentative of Middle English titten (“to waver”), related to Old Norse titra (“to shake, shiver, quiver”), dialectal Swedish tittra (“to snicker”).
Etymology from Wiktionary, CC BY-SA 3.0