After I came across the character 寓 (yù; residence), I wanted to know more about it's sound component 禺 (yú, yù; district/a mountain in Zhejiang) and it's origin.
Unfortunately though, there are many theories about this sound component and I cannot come to a conclusion on what this sound component original meaning or representation was.
Also for reference, here are what some of the following sources say about the origin of 禺:
《說文解字》: Depiction of a kind of monkey with a ghost/demon-like head.
漢語多功能字庫, Dong Chinese: Possibly a depiction of a reptile-like animal and may be related to 禹.
zi.tools: Derived from 鬼, which depicts a ghost with an emphasized cranium. (Already checked the Old Chinese pronunciation, doesn't sound similar to each other.)
Kanji Networks: Depicts a monkey with a curved back and a curved tail.
Alex Adler, The World of Kanji p. 71: Depicts a person dancing with a skull mask on.
谷衍奎《汉字源流字典》p. 457-458: Depicts a gorilla with it's head emphasized/protruding.
I've tried looking up this component in Outlier Dictionary of Chinese Characters and 季旭昇 《說文新證》 but was unable to find any information about this component. Unless if I skipped out on any pages on 《說文新證》.
If anyone could assist in finding out the origin for this sound component, it would be much appreciated!