Webster's Revised Unabridged Dictionary · 1913

Interlace

Interlace , verb, transitive and intransitive

[Old English entrelacen, French entrelacer. See Inter-, and Lace.]

To unite, as by lacing together; to insert or interpose one thing within another; to intertwine; to interweave.
Severed into stripes That interlaced each other. — Cowper
The epic way is everywhere interlaced with dialogue. — Dryden
Collocations (1)
Interlacing arches (Architecture) , arches, usually circular, so constructed that their archivolts intersect and seem to be interlaced.