to arrive, to come, to return; in the future, later on
Pictograph of a stalk of wheat. The current meaning "come" is a phonetic loan. The original meaning "wheat" is now written as 麥.
《說文》：“來，周所受瑞麥來麰，一來二縫。象芒朿之形。天所來也，故為行來之來。”
wheat