Proto-Altaic: *pā̀jbu ( ~ p`-)
Meaning: to add, increase
Russian meaning: добавлять, увеличивать
Comments: An Eastern isogloss. Aspiration in Korean may be due to secondary affixation (*phó < *po-h- < *pVbV-g-); however, a reconstruction *pāgu- is not excluded for PTM, and therefore the PA form may be as well reconstructed as *pājgu (*-j- is needed anyway to explain fricativization in Japanese).
