adjective

1. having a severe or stern look, manner, etc.; forbidding
2. showing strict self-discipline and self-denial; ascetic
3. very plain; lacking ornament or luxury austere surroundings
4. Rare grave; sober

Etymology: ME < OFr < L austerus, harsh < Gr austēros, dry, harsh < auein, to dry < auos, dry < IE base *saus, dry > sear