diminish

verb7

1. •
   To make smaller.

   • The existence of many nations and national characters is part of the cultural wealth of mankind, and there is no reason to seek to diminish their number. — 1978
2. •
   To become less or smaller.
3. •
   To disappear gradually.
4. •
   To take away; to subtract.

   • Ye shall not add unto the word which I command you, neither shall ye diminish ought from it, that ye may keep the commandments of the Lord your God which I command you. — 1611
5. •
   To make appear smaller than in reality; to dismiss as unimportant.
6. •
   To lessen the authority or dignity of; to put down; to degrade; to abase; to weaken; to nerf (in gaming).

   • It shall be the basest of the kingdoms; neither shall it exalt itself any more above the nations: for I will diminish them, that they shall no more rule over the nations. — 1611
7. •
   To taper.

   • The chair and table legs diminished as they neared the ground, and were straight and square in all their corners. — 1853