подточи́ть

rare #26934

verbperfective imperfective is подта́чивать

1.
to sharpen (a little), to whet, to grind down
Надо подточи́ть нож.
The knife needs to be sharpened a bit.
Often of restoring an edge or point that has become dull.
2.
to eat away, to gnaw away, to undercut
Вода́ подточи́ла бе́рег.
The water ate away the bank.
Of water, rust or insects wearing something away from below or within.
3.
to undermine, to sap
Боле́знь подточи́ла его здоро́вье.
The illness undermined his health.
Figurative: of illness, worry or doubt weakening something gradually.

Examples

Болезнь подточила её силы за зиму.
The illness sapped her strength over the winter.
Вода постепенно подточила старый фундамент дома.
The water gradually undermined the old foundation of the house.
Годы тяжёлой работы подточили его здоровье.
Years of hard work took a toll on his health.

Note: Stress change.

Imperative
ты	подточи́
вы	подточи́те

Active present	-
Active past	подточи́вший	having undermined, having eroded, having eaten away at
Passive present	-
Passive past	подто́ченный	undermined, gnawed, eaten away, slightly sharpened
Gerund present	-
Gerund past	подточи́в подточивши	while doing (past)

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