подо́лгу

adverb

long; for hours; days, months ; long, for hours [days, months, etc]
Он, быва́ло, подо́лгу си́живал с на́ми he used to sit with us for hours
Он жил у нас подо́лгу he lived with us for months, years; He lived with us for long periods
щ
подолгу | Slovarish | Словарищ