n.
Pronunciation: ' lisp
Function: verb
Etymology: Middle English, from Old English -wlyspian; akin to Old High German lispen to lisp
Date: before 12th century
intransitive verb
1 : to pronounce the sibilants \ s \ and \ z \ imperfectly especially by turning them into \ th \ and \ th \
2 : to speak falteringly, childishly, or with a lisp
transitive verb : to utter falteringly or with a lisp
– lisp · er noun