— titterer , n. — titteringly , adv.
/tit"euhr/ , v.i.
1. to laugh in a restrained, self-conscious, or affected way, as from nervousness or in ill-suppressed amusement.
n.
2. a tittering laugh.
[ 1610-20; perh. tittra to quiver, Sw (dial.) tittra to giggle ]
Syn. 1. snicker, snigger, giggle.