咫
Meanings
1
noun, noun, used as a suffix, counter
hand-span unit (approx. 18 cm)
archaic
Archaic unit of length based on the distance between the tip of the thumb and the tip of the middle finger when stretched apart. Used historically as a suffix or counter, e.g., 一咫 (ひとあた).
The unit of length 'ひとあた' appears in old documents.
An ata is the distance between the outstretched thumb and middle finger, about 18 centimeters.