Creating a Unique Japanese Name: Seeking Guidance on "てるかわ" for "Terukawa"


I have a question and I kindly ask for your patience, as my knowledge of
Japanese is basic. I've been trying to create a Japanese name, and I came
across the word "両側" (ryōgawa), which means "both sides." I've seen some
authors create names in this way, so I decided to create my own reading,
"てるかわ" (Terukawa), to form a name or surname (I haven't decided which would be
more appropriate yet). However, I noticed that "てる" is listed as the kun'yomi
reading of the kanji "両," but I couldn't find any word that uses it in the
websites I usually consult. I apologize if my question seems naive, but I
would like to know if I'm proceeding correctly. Thank you for reading this
far, and I appreciate your help in advance!

