English Dictionary

To make otherwise; to change in some respect, either partially or wholly; to vary; to modify.
Source : opted (4754)  - auto

To agitate; to affect mentally.
Source : opted (4755)  - auto

To geld.
Source : opted (4756)  - auto

To become, in some respects, different; to vary; to change; as, the weather alters almost daily; rocks or minerals alter by exposure.
Source : opted (4757)  - auto