Origin: Latin prefix sub-
Subsequently has 2 different meanings across 1 category:
happening at a time subsequent to a reference time
"he apologized subsequently"
"he's going to the store but he'll be back here later"
"it didn't happen until afterward"
"two hours after that"
Following, afterwards in either time or place.
"The team completed their initial survey and subsequently moved to the neighboring district to conduct further research."
In plain English: Subsequently means something happens after another event has already occurred.
"After he finished his studies, he subsequently moved to London to find work."
Usage: Use subsequently to indicate that one event happens after another in time or sequence. It is often interchangeable with afterward but sounds slightly more formal and precise when describing a logical progression of events.
Subsequently comes from combining the word subsequent, meaning following or coming after, with the suffix -ly. The term entered English as a straightforward formation to create an adverb describing something that happens later in time.