oscitate
/ɒskɪˈeɪt/Definitions
1. verb
to oscillate or move to and fro with a swinging motion
“The pendulum oscitates gently in the air.”
2. noun
a person who oscillates or moves to and fro with a swinging motion
“The oscitate of the pendulum is quite fascinating.”
3. verb
to utter or produce a sound, especially one that is repeated or oscillating
“The baby oscitates a soothing lullaby.”