تفاقحوا
Root: فقح
Form: 6
Full Definition
تفاقحواVI
They put [or turned] their backs one towards another; [from فَقْحَةٌ, q. v.;] like as you say تَظَاهَرُوا [and تَدَابَرُوا] and [in the contr. sense] تَقَابَلُوا.