acetic / ascetic [əˈsitɪk]
acetic – adj. – 1. having a taste or other properties similar to vinegar; 2. Chem. – having a group with two carbons, one oxygen and three hydrogen atoms
ascetic – adj. -- 1. austere; 2. related to extreme self-discipline or abstinence; n. – 1. one who practices self-denial; 2. one who seeks solitude for prayer and meditation