affect

verb
af·fect
ə.fĕkt'

To influence or alter.

Example

“The experience affected me deeply.”

Other meanings

To move to emotion.
“He was deeply affected by the tragic ending of the play.”
Of an illness or condition, to infect or harm (a part of the body).
“Hepatitis affects the liver.”

Example sentences

“Can damp and mould affect my health?”
Tatoeba · Igider · CC0
“Everything that happens to you affects me.”
Tatoeba · AmarMecheri · CC0
“Trauma affects gene expression.”
Tatoeba · shekitten · CC0

Word history

From Latin "afficere" (to act upon, influence, affect, attack with disease).

Where this comes from

This definition is adapted from “affect” on Wiktionary, by its contributors; example sentences are from Tatoeba, credited to their authors above, published under CC BY-SA 4.0. This page is published under the same licence.