Etymology: Derived from the Japanese words 'tō' (東 or 時) meaning 'east' or 'time', though more likely 'togi' from 'tō' (十) meaning 'ten' combined with 'gawa' (川) meaning 'river'; commonly interpreted as 'river at the ten points' or 'confluence of rivers'. Most accurately, it is a toponymic surname referring to someone who lived by a river junction.