śīaḥ שִׂיחַ ‘to muse’ (Hebrew)

Etymology^?: a primitive root

śīaḥ v
1) to put forth, mediate, muse, commune, speak, complain, ponder, sing
 1a) (Qal)
  1a1) to complain
  1a2) to muse, meditate upon, study, ponder
  1a3) to talk, sing, speak
 1b) (Polel) to meditate, consider, put forth thoughts