Senility

Se-nil′i-ty

,

Noun.

[Cf. F.

sénilité

.]

The quality or state of being senile; old age.

,

Noun.

Old age. [Not much used.]

senility ‎(countable and uncountable, plural senilities)

(uncountable) Senescence; the bodily and mental deterioration associated with old age.
(uncountable) The losing of memory and reason due to senescence.
He was entering his years of senility and not liking it a bit.
(countable, archaic) An elderly, senile person.

the losing of memory and reason

Breton: kabac'hded (br)
Catalan: senilitat f
French: sénilité (fr)
German: Senilität f
Greek: γεροντική άνοια f ‎(gerontikí ánoia)
Macedonian: изветреаност f ‎(izvetréanost), излапеност f ‎(izlápenost), сенилност f ‎(sénilnost)

an elderly, senile person