How do you say “lisp” in Vietnamese?

Vietnamese words for “lisp”

• nói ngọngListenverb
  Hanoi [nɔj˧˦ ŋawŋ͡m˧˨ʔ] · Saigon [nɔj˦˥ ŋawŋ͡m˨˩˨]nói rising ngọng heavy

  for “lisp” meaning: To pronounce the consonant ‘s’ imperfectly; to give ‘s’ and ‘z’ the sounds of ‘th’ (/θ/, /ð/). This is a speech impediment common among children.

• nói đớtListenverb
  Hanoi [nɔj˧˦ ʔɗəːt̚˧˦] · Saigon [nɔj˦˥ ʔɗəːk̚˦˥]nói rising đớt rising

  to have a "lisp"

  for “lisp” meaning: To pronounce the consonant ‘s’ imperfectly; to give ‘s’ and ‘z’ the sounds of ‘th’ (/θ/, /ð/). This is a speech impediment common among children.