horse's load; packhorse load
Refers to the load carried by a packhorse, often in historical or rural contexts. Not commonly used in modern everyday conversation.
On the old highways, lines of horses carrying packhorse loads could be seen.
Compound of 駄 (da, 'packhorse') and 荷 (ni, 'load, cargo'). The reading だに is a straightforward combination of the on'yomi of the first character and the kun'yomi of the second.