hover
hov-er
verb
To linger close by someone or something, often in an intrusive or uncertain way.
"She tends to hover near the snack table."
verb
To remain in one place in the air, often by flapping wings or using a device.
"The helicopter continued to hover overhead."
Thesaurus
Synonyms: levitate, loom, bulk large, brood, linger, oscillate, vacillate, vibrate