IPA: //ænˈtɪkweɪt//
KK: /æn'tɪkweɪt/
To make something old-fashioned or no longer useful.
The rapid advancement of technology can antiquate older devices quickly.
Past: antiquated
Past Participle: antiquated
Antiquate → It is formed from "antiquus" (meaning ancient) and the suffix "-ate" (indicating to make or to cause). The word "antiquate" means to make something old-fashioned or to render it obsolete, relating to the concept of antiquity.
Think of something being made 'ancient' ('antiquus') — that's why antiquate means to make something old-fashioned.