WELL-DRAIN, noun [well and drain.] A drain or vent for water, somewhat like a well or pit, serving to discharge the water of wet land. WELL-DRAIN, verb transitive To drain land by means of wells or pits, which receive the water, and from which it is discharged by machinery.
Source: Webster's 1828 American Dictionary ↗ · public-domain · returned verbatim, no AI