titter

Meanings

1. To laugh or giggle in a somewhat subdued or restrained way, as from nervousness or poorly-suppressed amusement.
2. To teeter; to seesaw.

1. A nervous or somewhat repressed giggle.

1. A woman's breast.
2. A girl or young woman.

Etymology

First 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”).