to meet with, see, meet again or for the first time / to come across, meet by accident, bump into / to gather, to come together / to receive guests etc.

(formal) friend

for many years

久しい: long, a long time since

meeting again - the situation of meeting someone at an interval. / reunion

to meet someone again - meet at an interval. / to reunite

年久しく: for many years

久しく: for a long time

long, a long time since

幾久しく: forever