assibilate

verbs

insert a sibilant sound before or after (another sound)
is derived from
is derived from
is a type of (narrower)
utter a sibilant
change into a sibilant
"In the syllable /si/, the /s/ sibilates in Japanese"
is derived from
is derived from
is derived from
is a type of (narrower)
undergo a change; become different in essence; losing one's or its original nature
"She changed completely as she grew older"; "The weather changed last night"