senile

The story

1. Proto-Indo-European · derived from*sénos“old”
2. Latin · derived fromsenīlis“of or pertaining to old age”
3. Old French · derived fromsenile
4. Middle French · derived fromsenile
5. French · borrowed fromsénile
6. English todaysenile

1660s; borrowed from French sénile, from Middle French senile, from Old French senile, from Latin senīlis (“of or pertaining to old age”), from senex (“old man”), ultimately from Proto-Indo-European *sénos (“old”).

Words from the same roots