the age of seventy, eighty, or ninety; a very old age

(literary) old age, specifically referring to a person in their seventies, eighties, or nineties

dim-sightedness or the physical decline associated with extreme old age

pertaining to or experiencing the mental or physical decline associated with old age

(literary) the elderly and the young children; old and young people in general

to be upset or disturbed; to be in a state of confusion

(literary) the age of eighty or ninety; a time of life in extreme old age

advanced old age, specifically referring to being in one's eighties or nineties

feeble-minded and senile due to old age