Coitophobia: An abnormal and persistent fear of sexual intercourse. Sufferers from coitophobia experience undue anxiety because they are preoccupied with failing in some way while having sexual intercourse. Among the symptoms of coitophobia are failure to achieve an erection (erectile dysfunction) and failure to achieve orgasm (anorgasmy).
"Coitophobia" is a hybrid word derived from the Latin "coitus," which is the past participle of the verb "coire" (to come together), and the Greek "phobos" (fear).
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References
Kasper, D.L., et al., eds. Harrison's Principles of Internal Medicine, 19th Ed. United States: McGraw-Hill Education, 2015.