steadies
stead-ies
verb
Makes something firm, stable, or stops it from moving or shaking.
"He steadies the wobbly table with a wedge."
Thesaurus
Synonyms: steady, secure, frequent, regular, calm, becalm, stable, firm, unfluctuating, steady-going, unwavering, sure
Antonyms: falteringly, uncertainly, unsteadily, unsteady