What is a Living 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 Living Word™.

Use the examples below to find the rule.

Living Words™	Not Living Words™
ADAPTING	BONES
BODIES	BURIED
CANCEROUS	CROSS
DISEASES	CRUELTY
ENVIRONMENTAL	DEATH
FLOURISHED	DECOMPOSITION
GERMINATING	EMBALM
HYENAS	EULOGY
ILLNESS	EXECUTION
JUMPING	EXTERMINATION
KINDHEARTED	FRANKENSTEIN
LIVELINESS	FUNERAL
MUTATES	GENOCIDE
NOISES	GRAVE
OXYGEN	HEAVEN
PERPLEXING	HELL
QUADRUPLET	HOLOCAUST
REGENERATES	MOURNING
SYMBIOSES	MUMMY
TRANSCENDENTALIST	MURDER
UPRIGHT	POISONED
VIGOROUS	ROCK
WACKY	SKELETON
YOUNGSTER	SUICIDE
ZYGOTES	VAMPIRE
	WAR
	ZOMBIE

CSV Version:

Living Words™,Not Living Words™
ADAPTING,BONES
BODIES,BURIED
CANCEROUS,CROSS
DISEASES,CRUELTY
ENVIRONMENTAL,DEATH
FLOURISHED,DECOMPOSITION
GERMINATING,EMBALM
HYENAS,EULOGY
ILLNESS,EXECUTION
JUMPING,EXTERMINATION
KINDHEARTED,FRANKENSTEIN
LIVELINESS,FUNERAL
MUTATES,GENOCIDE
NOISES,GRAVE
OXYGEN,HEAVEN
PERPLEXING,HELL
QUADRUPLET,HOLOCAUST
REGENERATES,MOURNING
SYMBIOSES,MUMMY
TRANSCENDENTALIST,MURDER
UPRIGHT,POISONED
VIGOROUS,ROCK
WACKY,SKELETON
YOUNGSTER,SUICIDE
ZYGOTES,VAMPIRE
,WAR
,ZOMBIE

These are not the only examples of Living Words™, there are many more in existence. In the spellcheck dictionary, which I got my wordlists from, about 5.5% of all words are Living Words™.

So, what is the rule? Of course, it has nothing to do with the definition or connotation of the word, only with its spelling.

Hint #1

Any anagram of a Living Word™ is another Living Word™.

Hint #2

The only single-letter Living Word™ is “R”.

Hint #3

All “demonic” words are Living Words™. The shortest “demonic” word is FOX. Some others are BUSINESS, CROWDED, EUNUCH, GUTENBERG, NAUSEATED, SEVERING, TOMATOES, and WINGS.

Hint #4

MOTHER + FATHER = WISDOM; BROTHER + SISTER = CODEPENDENCY

Hint #5

Although it should be perfectly possible for a monolingual English speaker to solve the puzzle, it may be easier if you know a bit of Hebrew.

Hint #6

The 5.5% statistic is meaningful.

Hint #7

ΑΒΓΔΕϜΖΗΘΙΚΛΜΝΞΟΠϘΡΣΤΥΦΧΨΩ

Answer 1

A Living Word is a word that ...

... is evenly divisible by 18 in when interpreted as a number according to the following table:

        A 1         J 10         S 100
        B 2         K 20         T 200
        C 3         L 30         U 300
        D 4         M 40         V 400
        E 5         N 50         W 500
        F 6         O 60         X 600
        G 7         P 70         Y 700
        H 8         Q 80         Z 800
        I 9         R 90

The number is the sum of the letter values.

This satisfies the many hints:

• The Greek alphabet with the archaic characters Digamma and Koppa hints at Greek numerals. A similar system is used in Hebrew.
• R with the value 90 is the only single-letter word that is divisible by 18. Because the English alphabet has only 26 letter, it is too short to have a letter for 900, which would be the second single-letter Living Word.
• FOX is 6 + 60 + 600 = 666. It is the only "direct" demonic word with one letter for each decimal digit, but all the other demonic words correspond to a value of 666, too.
• MOTHER + FATHER = WISDOM → 403 + 310 = 713
• BROTHER + SISTER = CODEPENDENCY → 455 + 504 = 959
• I can confirm the 5.5% statistic with a check on several dictionaries. 5.5% is the eighteenth part of a whole, but I'm not so sure whether this statistic really leads to the divisibility by 18. That can only be true if the number system spreads the numeric values of real worrd evenly across the number space. I'm not so sure of that, but I haven't really looked into it, either.

They are called Living Numbers ...

.. because in Hebrew Gematria, the word Chai has two letters that sum up to eighteen. It is considered a lucky number and it means "alive".

Answer 2

As far as I have checked Living Words satisfy the following rule

If we replace the letters of the alphabet with their corresponding positions in the alphabet i.e, $A=1, B=2, \ldots, Z=26$ and sum the resulting numbers for a Living Word, the result is always divisble by $9$.

Examples:

UPRIGHT $21+16+18+9+7+8+20 = 99 = 9\times 11$
ILLNESS $9+12+12+14+5+19+19 = 90 = 9\times 10$
ZYGOTES $26+25+7+15+20+5+19 = 117 = 9 \times 13$

Hints:

This explains all of the hints except for the fact that 'I' is not a living word, by my definition, which confuses me.