ichidan verb, transitive verb
hold an additional item; carry something extra in one's hand
Describes holding one more thing in the same hand or the other hand, often when already carrying something.
買い物袋に加えて、傘も持ち添える。
In addition to the shopping bag, I also hold an umbrella.
ichidan verb, transitive verb
use an extra hand to hold; hold with an additional hand
Emphasizes using the other hand or an extra hand to support or hold something, often to steady or assist.
重い箱を片手で支え、もう一方の手でふたを持ち添える。
I support the heavy box with one hand and use the other hand to hold the lid.