ṣāmad צָמַד ‘to join’ (Hebrew)

Etymology^?: a primitive root

ṣāmad v
1) to bind, join, fasten
 1a) (Niphal) to join, join or attach oneself to
 1b) (Pual) to be fastened, be bound
 1c)(Hiphil) to combine, fit together, hitch up