in·ter·lace 
(ĭn′tər-lās)
(ĭn′tər-lās)v. in·ter·laced, in·ter·lac·ing, in·ter·lac·es
v.tr.
1. To connect by or as if by lacing together; interweave.
2. To intersperse; intermix: interlaced the testimony with half-truths.
v.intr.
To intertwine: "As the earth thaws, numberless little streams are formed to overlap and interlace with one another" (Joyce Carol Oates).
in′ter·lacement n.