What is a Vail word™

Question

_{This is in the spirit of the What is a Word/Phrase™ series started by JLee with a special brand of Phrase™ and Word™ puzzles.}

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If a word conforms to a special rule, I call it a Vail Word™.
Use the following examples below to find the rule.

Vail Words™	Not Vail Words™
KNOTTED	TIED
ONLY	CHOICE
JUMP	LEAPED
TROOPS	SOLDIER
MARTYR	DIED
KEY	ENCODES
CONTACT	LIFT
QUOTE	AUTHOR
NATION	ENGLAND
DROP	THROUGH
WINDOW	ANDROID
WROTE	ARTICLE
TAGGER	FREEZE

And, if you want to analyze, here is a CSV version:

Vail Words™,Not Vail Words™
KNOTTED,TIED
ONLY,CHOICE
JUMP,LEAPED
TROOPS,SOLDIER
MARTYR,DIED
KEY,ENCODES
CONTACT,LIFT
QUOTE,AUTHOR
NATION,ENGLAND
DROP,THROUGH
WINDOW,ANDROID
WROTE,ARTICLE
TAGGER,FREEZE

Hint:

To find the answer, look at the...

Hint 2:

...name of the category.

Hint 3:

T and O are good, E and H are bad.

Hint 4:

Orders 45 and 46 are ready!

Answer 1

I think a VAIL word is one which, when written in

MORSE CODE has more dashes than dots.

T and O are good since they are written using dashes only (- and - - -)
E and H are bad since they are written using dots only (. and . . . .)

Here are some of the counts as examples:

This is called a VAIL word, as

Aflred Vail was a collaborator in the invention of Morse code, along with Morse himself.