ralentir znamená v Angličtina

slow [slowed, slowing, slows]▼◼◼◼(to reduce the speed of)
verb
[UK: sləʊ] [US: sˈloʊ]

slow down▼◼◼◻(to reduce speed)
verb
[UK: sləʊ daʊn] [US: sˈloʊ ˈdaʊn]

decelerate [decelerated, decelerating, decelerates]▼◼◼◻(reduce the velocity of something)
verb
[UK: ˌdiː.ˈse.lə.reɪt] [US: də.ˈse.lə.ˌret]

decelerate [decelerated, decelerating, decelerates]▼◼◼◻(to go slower)
verb
[UK: ˌdiː.ˈse.lə.reɪt] [US: də.ˈse.lə.ˌret]

abate [abated, abating, abates]▼◼◻◻verb
[UK: ə.ˈbeɪt] [US: ə.ˈbeɪt]