This word is acceptable for play in the US & UK dictionaries that are being used in the following games:

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n. A consonant, such as (s), (z), (m), or (l), that can be prolonged as long as the breath lasts without a change in quality.

n. A linguistic sound other than a stop

n. A determinant formed from a tridiagonal matrix.

adj. Continuing; prolonged; sustained.

adj. Continuing; prolonged; sustained.

n. In mathematics, a determinant all whose constituents vanish, except those in the principal diagonal and the two bordering minor diagonals, while all those of one of these minor diagonals are equal to negative unity: as

n. Also cumulant.

n. A consonant such as f, v, s, z, etc., the sound of which may be indefinitely prolonged, as distinguished from a ‘stop,’ such as p, b, etc., which involves a complete closure of the mouth.

n. consonant articulated by constricting (but not closing) the vocal tract

adj. of speech sounds produced by forcing air through a constricted passage (as `f', `s', `z', or `th' in both `thin' and `then')

"So from a form like Mid IE *maxéd̰a- 'to rejoice', we can simply proceed as I had explained in my previous post which relies on a certain phonotactic-based rule I'm now hypothesizing during the Pre-IE event of Syncope that changes initial sequences of expected **CHe- (C = continuant, H = laryngeal) to *Cä- instead (MIE *maxéd̰a- 'to be rejoiceful' eLIE *mäd̰- PIE *mad- 'to be drunk')."

soft   

continuing    prolonged    sustained   

phalange    coffin-like    nonspeech    titanicu92s    gruffest