Entries linking to hairdresser
Old English hær "hair, a hair," from Proto-Germanic *hēran (source also of Old Saxon, Old Norse, Old High German har, Old Frisian her, Dutch and German haar "hair"), perhaps from PIE *ghers- "to stand out, to bristle, rise to a point" (source also of Lithuanian šerys "bristle;" see horror).
Spelling influenced by Old Norse har and Old English haire "haircloth," from Old French haire, from Frankish *harja or some other Germanic source (see above). Hair-dye is from 1803. To let one's hair down "become familiar" is first recorded 1850. Homeopathic phrase hair of the dog (that bit you), remedy from the same thing that caused the malady, especially a drink on the morning after a debauch, 1540s in English, is in Pliny.
c. 1300, "person who prepares or furnishes (something)," agent noun from dress (v.). Meaning "table, sideboard" (on which food is prepared) is from late 14c., from Old French dresseur, dreçoir "table to prepare food," from dresser "prepare, dress." Sense of "one who is employed in clothing or adorning others" is from 1510s. Meaning "chest, dressing bureau" is by 1895.