hubris
excessive pride or self-confidence
Some four letter words starting with S using the letters DEELLORRY are:seedseersellsledsoldsore
Breeder is a 7 letter words using only those letters
You can not spell any 4 letter words with the 3RD letter N using only the letters pmhlijkssxt. The letters do not include the letter N.
There are three 7-letter words possible:roosterrooterstoreros
pets
'PROSCENIUM' itself is the only 10-letter word using those letters. There are several 8-letter words, but no other 10-letter ones.
The only eight letter word that can be made from those letters is 'starting'.
snowday
sultana
There are only two letters starting with L that I can think of; the Letter of the alphabet, which is "L" and the Word "Letter." As "Letter" is longer than "L" I can only assume that the word "Letter" is the longest letter starting with L. lymphoblastic leukemia
hipster
estuary