Definition of underwriter
1
: one that underwrites : guarantor
2a
: one that underwrites a policy of insurance : insurer
b
: one who selects risks to be solicited or rates the acceptability of risks solicited
3
: one that underwrites a security issue
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Merriam-Webster unabridged
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Time Traveler for underwriter
The first known use of underwriter was in 1622
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