/tee"teuhr/ , Chiefly Northern U.S.
v.i.
1. to move unsteadily.
2. to ride a seesaw; teetertotter.
v.t.
3. to tip (something) up and down; move unsteadily.
n.
4. a seesaw motion; wobble.
5. a seesaw; teetertotter.
[ 1835-45; var. of dial. titter, ME titeren titra tremble; c. G zittern to tremble, quiver ]