(phonology) To lengthen (a vowel) upon dropping the consonant that had followed it; to cause to undergo compensatory lengthening.

(phonology, uncountable) The lengthening of a vowel sound which occurs when a following consonant is lost, regarded as an extreme form of fusion; (countable) an instance of this.

present participle of compensatorily lengthen

Third-person singular simple present indicative form of compensatorily lengthen

simple past tense and past participle of compensatorily lengthen