"one who seeks pleasure," 1825, from pleasure (n.) + agent noun from seek.
Entries linking to pleasure-seeker
pleasure n.
late 14c., plesire, "source of enjoyment, pleasing quality or thing, that which pleases or gratifies the senses or the mind," from Old French plesir, also plaisir "enjoyment, delight, desire, will" (12c.), from noun use of infinitive plaisir (v.) "to please," from Latin placere "to please, give pleasure, be approved" (see please (v.)).
Also from late 14c. as "discretion, will, desire, preference," as in at (one's) pleasure "when one wishes." From mid-15c. as "gratification; feeling of enjoyment, liking." The meaning "sensual gratification" is from early 15c. That of "indulgence of the appetites as the chief object of life" is attested from 1520s. The ending was altered in Middle English by influence of words in -ure (measure, etc.).
seek v.
Middle English sēchen "go in search or quest of; strive for, try to attain," from Old English secan, seocan "search for; pursue, chase; long for, wish for, desire; look for, expect from," influenced by Old Norse soekja, both from Proto-Germanic *sokjanan (source also of Old Saxon sokian, Old Frisian seka, Middle Dutch soekan, Old High German suohhan, German suchen, Gothic sokjan).
This is reconstructed to be from PIE *sag-yo-, from root *sag- "to track down, seek out" (source also of Latin sagire "to perceive quickly or keenly," sagus "presaging, predicting," Old Irish saigim "seek"). The natural modern form of the Anglo-Saxon word, had it not been influenced by Norse, is in beseech. Related: Sought; seeking.
By late Old English as "ask a question." Seek-sorrow (1580s) was an old term for "a self-tormentor, one who contrives to vex himself." Seek-no-further (or farther) as the name of a type of eating apple is by 1660s.