English senile

← French sénile (borrowed)

← Middle French senile (derived)

← Old French senile (derived)

← Proto-Indo-European *sénos (derived)

← Latin senīlis (derived)

← Latin senex (mention)

→ English senility (suffix)

→ English nonsenile (prefix)

→ English presenile (prefix)

→ English dementia praecox (link)

→ English senilely (suffix)

→ English senilize (suffix)

→ English senilism (suffix)