yàn
to entertain
Original meaning:
peace and happiness
Phonosemantic compound. 宀 represents the meaning and 妟 represents the sound. Based on the original meaning "peace and happiness". The meaning later shifted to "banquet", "feast", and "to entertain".
Evolution

Bronze script
Late Western Zhou (~800 BC)
Seal script
Shuowen (~100 AD)
Clerical script
Eastern Han dynasty (25-220 AD)Regular script
ModernSources
李学勤《字源》p.657