ṣāfan צָפַן ‘to treasure’ (Hebrew)

Etymology^?: a primitive root

ṣāfan v
1) to hide, treasure, treasure or store up
 1a)(Qal)
  1a1) to hide, treasure, treasure up
  1a2) to lie hidden, lurk
 1b) (Niphal) to be hidden, be stored up
 1c) (Hiphil) to hide, hide from discovery