Origin
Tōryanse is a traditional Japanese children's tune from the Edo era. Usually, these Japanese songs are followed by some plays and games. However this is questionable, because according to a quotation in an old record from the 1920’s, Ujo Noguchi is the author.
About the name
I didn’t know almost anything about the meaning of the name, but I thought that was some kinda of old Japanese. Looking for information about the song, I read a lot of translations and almost of then use “Let me pass” as the meaning for Tōryanse. I thought that Tōryanse was a noun, but talking to my Japanese friend we realized that Tōryanse is probably a verb. The verb, “Toru”, means to pass (by, over, through).