long-standing

last

a long while

It took a long time.

everlasting

everlasting

I've been looking forward to meeting someone.

everlasting

Long-term separation

lasting

Lasting for a long time

Forever and ever-forever and ever

After a long period of time.

have long enjoyed a good reputation

Stay unshakable and become more determined over time.

Lend sth for a long time

Long-term peace and order

reunite after a long separation

Forever and ever-forever and ever