sep·a·rate·ly
ˈsep(ə)rətlē/
adverb
adverb: separately
as a separate entity or entities; not together.
"they arrived together but left separately"
synonyms: individually, one by one, one at a time, singly, severally; apart, independently, alone, by oneself, on one's own
"I'll have to interview you all separately"
Translate separately to
Use over time for: separately