pattern - What is a Viridescent Word™?

_{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.}

If a word conforms to a special rule, I call it a Viridescent Word™.

Use the following examples below to find the rule.

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

Viridescent Words™,Not Viridescent Words™

Palped,Banana
Fancy,Explode
Remedial,Powerful
Enrage,Fleet
Email,Bound
Stamina,Glide
Hemiacetal,Tense
Matin,Relax
Violet,Antiquity
Aphoristic,Swell

Lathe,Burst
Soubriquet,Drawn
Indinavir,Disappear
Trove,Rush

Answer

Answer with the help of @Will, @M Oehm, @Glorfindel and me (Maria Deleva) :

Viridescent words contain shades of green plus one excess letter.
Extra viridescent words contain at least two shades of green.
Palped - apple

Fancy - cyan
Remedial - emerald, lime
Email -> lime
Hemiacetal - malachite, lime, teal
Enrage - green
Stamina - mantis, mint
Matin - mint
Violet - olive
Aphoristic - pistachio
Lathe - teal

Soubriquet = turquoise
Indinavir = viridian
Trove - vert (@RadoslavHristov)