Other forms: sandpits
A sandpit is a box of loose grains for children to dig in. Play in the sandpit.
It has to be covered at night or every cat in the street uses it. In computing a sandpit is a safe space to try things where nothing can be broken.
1nounsandpitA box of loose grains for children to dig in.
“The sandpit was the only part of the garden anybody used.”
sandpit is a place.
Old English sandpytt is sand plus pit, and first named a place sand was dug from rather than anything for children.
Old English
sandpytt — sandpit
Middle English
sandpitte
English, today
sandpit
From Middle English sandpitte, sandpette, sandputte, from Old English sandpytt (“sandpit”), equivalent to sand + pit.
Etymology from Wiktionary, CC BY-SA