1. cross or be crossed intricately together; interweave: "Jane interlaced her fingers to form a cup"
▪ mingle or intersperse something with: "discussion interlaced with esoteric mathematics"
▪ scan (a video image) in such a way that alternate lines form one sequence which is followed by the other lines in a second sequence:"you need different software to interlace the images"
Word Originlate Middle English: from Old French entrelacier, from entre- ‘between’ + lacier ‘to lace’.