Some 10 letter words that start with the letter s:
sacramentsscarecrowssegregatesshrewdnesssimplifiessleevelesssmoothnesssnowflakessociopathsspeechlesssquarenessstimulatessubscribes
Seta is a 4-letter word for hair or bristle starting with S.
categories
Sincere is an adjective. It begins with the letter s.
StreamSheetSpearSlimeSweetSweat
sum
set
spotless
so
silence
The word you are looking for is "sap."
schwartzed