What semantic field underlies 即?
imo, yexxxxxxxxxx and wikxxxxxxx are suitable for beginner only. if you’re interested in etymology, use proper, and better tools; please.

multi-function chinese character database (漢語多功能字庫)

it’s maintained by the chinese university of hong kong

http://humanum.arts.cuhk.edu.hk/Lexis/lexi-mf/search.php?word=即

read the text in the middle, compare the character in oracle, bronze and seal script.

or, try the 小學堂 , of taiwan

http://xiaoxue.iis.sinica.edu.tw/yanbian?kaiOrder=497

read the character in oracle script, make a mental image :)