Prosecutors say 19-year-old Melvin Blevins of Pataskala was part of a marijuana-trafficking ring. A video recording showed him giving the toddler marijuana in a pipe while his girlfriend held her.
Blevins was sentenced Tuesday in U.S. District Court in Columbus. He pleaded guilty in March to various drug and weapons charges, including distribution of marijuana to a person younger than 21.
The girlfriend, 16-year-old Angel Dailey, pleaded guilty to child endangering and was sentenced in May to at least six months in juvenile detention.
Authorities learned of the videotape after a Columbus pawn shop found it in a camcorder.