sur
Old FrenchVariants
sursure
Related Roots
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About This Root
From Old French seur (safe, secure), from Latin sēcūrus (free from care). The "secure" sense runs through the family: sure (certain), assure (make secure), ensure (make certain), insure (protect against loss), and reassure (restore confidence). Insurance preserves the original protective meaning most directly.
Associated Words
assure
To tell someone confidently that something is true; to guarantee; 保证,使确信
NGSL 3kIELTSTOEFL
assured
Guaranteed; self-confident
GREB2
assuredly
Certainly; without doubt
TOEFLB2
ensure
To make certain that something happens
NGSL 2kGREB1
insurance
A financial arrangement providing compensation for loss or risk
NGSL 2kIELTSB1
insure
To arrange insurance protection against risk; to make something certain
NGSL 3kIELTSA1
reassure
To restore someone's confidence and remove their fears
IELTSTOEFLB2
sure
certain or confident; reliable; certainly
NGSL 1kA1
surely
Certainly, without doubt
NGSL 2kB1