Python 3, (削除) 76 (削除ここまで) (削除) 60 (削除ここまで) 53 bytes

##(thanks to @Jo King & @sporeball)

for a in input():print(*map(chr,range(ord(a),96,-1)))

Try it online! (original 76 bytes solution)

Try it online! (53 bytes solution)

Python 3, (削除) 76 (削除ここまで) (削除) 60 (削除ここまで) 53 bytes

(thanks to @Jo King & @sporeball)

for a in input():print(*map(chr,range(ord(a),96,-1)))

Try it online! (original 76 bytes solution)

Try it online! (53 bytes solution)

Python 3, (削除) 76 (削除ここまで) 60 bytes (thanks to @Jo King)

for a in input():print(*map(chr,range(ord(a),96,-1)),sep="")

Try it online! (original 76 bytes solution)

Try it online! (60 bytes solution)

Python 3, (削除) 76 (削除ここまで) (削除) 60 (削除ここまで) 53 bytes

##(thanks to @Jo King & @sporeball)

for a in input():print(*map(chr,range(ord(a),96,-1)))

Try it online! (original 76 bytes solution)

Try it online! (53 bytes solution)