rāxax רָכַךְ ‘be tender’ (Hebrew)

Etymology^?: a primitive root

rāxax v
1) to be tender, be soft, be weak
 1a) (Qal)
  1a1) to be tender, be weak (of heart)
1a1a) to be timid, be fearful
1a1b) to be softened, be penitent
  1a2) to be soft (of treacherous words)
 1b) (Pual) to be softened
 1c) (Hiphil) to cause to be weak
 1d) (Niphal) tender