This word is not acceptable for play in the US & UK dictionaries that are being used in the following games:

• Lexulous
• Wordscraper
• Wordosaur

v. Present participle of ablaut.

adj. experiencing an ablaut

n. the process of vowel turning into its ablaut variant

"So we have an ablauting -es -os suffix which would betray an unaccented schwa *a."