1) Acidify 2) Acidulate 3) Change taste 4) Make or become acetous 5) Make sour or more sour 6) Make vinegar 7) Sour 8) To turn acid 9) To turn into vinegar 10) Turn acidic 11) Turn to vinegar 
• (v. t.) To convert into acid or vinegar. • (v. i.) To turn acid.
A·cet'i·fy intransitive verb To turn acid. Encyc. Dom. Econ. A·cet'i·fy transitive verb [ imperfect & past participle Acetified ; present participle & verbal noun Acetifying ] [ Latin acetum vinegar + -fly .] To convert into acid or vinegar. 
Type: Term Pronunciation: ă-set′i-fī Definitions: 1. To cause acetic fermentation; to make vinegar or become vinegar.
acetify, acetification, acetifier 1. To convert or to become converted to acetic acid or vinegar. 2. To make sour or more sour; acidify, acidulate. 3. To turn acidic.
to turn into vinegar; make or become acetous.