The crossword solution for the term 'Bygone Days, Once' is ELD. This acronym stands for 'Elderly Living Dependently, ' which is a term used to describe people who are elderly and living independently. It is often used to refer to those who are no longer able to care for themselves and require assistance from family or other caregivers. Bygone Days, Once is a phrase that is used to refer to a time in the past when elderly people were able to live independently without needing assistance.