αἰών

aiṓn - 165

age, course, eternal, (for) ever(-more), (n-)ever, (beginning of the , while the) world (began, without end)

properly, an age; by extension, perpetuity (also past); by implication, the world; specially (Jewish) a Messianic period (present or future)

from the same as G104 (ἀεί);