aeoline
/ˈiːəlʌɪn/(also eoline)
noun
1An early form of harmonium. Now historical.
2A soft string-toned organ stop of 8' pitch, found on both pipe and reed organs.
Origin
Mid 19th century; earliest use found in Musical Magazine. From German Aeoline from classical Latin Aeolus + German -ine (in e.g. Violine).