To write the Greek Capital Letter Eta With Dasia And Varia And Prosgegrammeni symbol ᾛ on keyboard using ALT codes; ALT+8091, just hold down the ALT key while typing the alt key cod🦹e 8091. You have to use the numeric keypad of your keyboard. If you don not have numeric keypad, hold down the Fn and ALT keys while typing the alt code number.