different; other; hetero-; unusual; strange; surprising; to distinguis
Phonosemantic compound. 廾 represents the meaning and 已 represents the sound. Simplified form of 異. Based on the original meaning "carry on the head", now written as 戴. The current meaning is a phonetic loan.
《說文》：“异，舉也。从廾，聲。”
carry on the head