After
WordNet
adverb
(1) 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"
(2) Behind or in the rear
"And Jill came tumbling after"
WiktionaryText
Etymology
Old High German aftero (possibly a loan translation of Latin posteriora "posterior", compare aftar)