If you mean words such as ‘asked’ and ‘answered’, these are past tense and past participle forms of verbs.
The base word for "winner" with the ending "ed" is "win".
keyed
The base word in "hoped" is "hope," while the ending is "-ed." Adding "-ed" to the base word changes it to past tense, indicating that the action of hoping has already occurred.
omitted
Generally, many verbs will add "ed" to the ending to symbolize that it is the past tense. Example: Walked, Jumped, Hugged, Climbed, Played.
The word wish is a regular verb. The past tense is wished.
By ending with -ed.
This type of word is called a "participle". It was not usually considered a separate part of speech when I learned English but may be now.
The ending of the word 'smoldered' is "-ed." It's like the cherry on top of a burnt cake - necessary to show that the action has already happened. So, next time someone asks you about the ending of a word, just remember to look at the last few letters and call it a day.
five-footed animal is an adjective ending in -ed.
ed
earned, hatred, abused, badged, banned,gained, warned, wanted, kissed, jumped