flummox /flumˈəks/ (informal)

To perplex or puzzle

• sheikha
• sheikhas
• sheikhdom
• sheikhdoms
• sheikhs
• sheiks
• sheila
• sheilas
• sheiling
• shekel
• shekels
• Shekinah
• sheldduck
• sheldrake
• sheldrakes
• shelduck
• shelducks
• shelf
• shelf-catalogue
• shelf-catalogues
• shelfed
• shelf-ful
• shelf-fuls
• shelf ice
• shelf ices