noun
many generations; many ages; many years
Poetic or literary term for a long span of time, often implying many generations or ages. Not used in everyday conversation; more common in songs, poems, or formal writing.
幾世を経ても変わらぬ想い。
A feeling that remains unchanged even after many ages.
この地に幾世の歴史が刻まれている。
The history of many generations is etched into this land.
Compound of 幾 (iku, 'how many') + 世 (yo, 'generation, age, world'). The exact historical derivation is uncertain, but it follows a classical pattern for expressing indefinite large numbers of time periods.