English
senilize
From senile + -ize.
Formed from senile + -ize
Proto-Indo-European *sénos ‘old’
…
Latin senīlis ‘of or pertaining to old age’
Old French senile ‘relating to old age’
Middle French senile
French sénile
English senile
Today it means
verb To advance in time of life.
Language periods are conventional ranges, not dates for this word.
Etymograph / senilize