Give the meanings of these words in English.
The meaning of the words are:
devise (verb): to plan to obtain something;
dingy: dirty or unclean;
effect (noun): result or consequence;
enmity: feeling of hatred or ill will;
exempt (adj): to free or release from liabilities;
flexible: pliant or something that is easily bendable;
formidable: something that causes fear or dread;
gratify: to satisfy;
guise (noun): a form of style or dress;
hereditary: something that is transmitted from offspring to parents;
insure: to guarantee against loss or harm or to make certain.