You searched for: “achieving
achieve (verb), achieves; achieved; achieving
1. To succeed in doing or gaining something, usually with effort.
2. To accomplish something successfully; perform at a standard or above a standard level.
3. Etymology: from Late Latin ad caput (venire, "to come"); both the Old French and Late Latin phrases meaning literally, "to come to a head", from Latin caput, "head".

Word History

To achieve something is to bring plans and actions to a head. This is the literal meaning of the ancestor of our word achieve, which was borrowed from the French in Norman times. They made the verb achever out of the preposition a-, "to", and chief, "head": "to bring to a head".

Old French chief comes, in turn, through a thousand years of gradual changes, which only the strongest (accented) syllables survived, from Latin caput, "head". The original sense, "bring to a head", easily acquired the present significance, "bring to a successful conclusion, make a success" of the task at hand.

Picturesque Word Origins; G. & C. Merriam Company;
Springfield, Massachusetts, U.S.A; 1933; page 8.
This entry is located in the following unit: capit-, capt-, cap-, cep-, ceps-, chapt-, chef, cip- (page 1)
(thinking that you can be successful in achieving an objective is a vital mental condition, but thinking that you can not do it is almost a guarantee that you will not be successful as indicated by Walter Wintle)