Antwort
Es ist eine Grußformel die aus dem Englischen übernommen wurde (Anglizismus). The greeting "hi" apparently came into use in the 14th or 15th century (written record to 1475), as a variant of "hey" (written as early as 1225). No one person is credited, but it appears to be of Middle English origin. nobody really knows. it has been lost through the ages