the.com/stock pond

means A man-made pond, usually built on a farm or ranch, that holds water for livestock to drink and often doubles as an informal fishing hole.

from A straightforward compound: 'stock' meaning farm animals (cattle, sheep — the sense traces back to Old English 'stocc,' originally 'tree trunk,' which drifted toward 'store of goods' and then 'livestock' as farm wealth), plus 'pond,' a small body of still water, itself a variant of 'pound' — an enclosure for holding something in. So the name literally tells you the job: a pound of water, dug to hold your animals' drinking supply.