the mind > mental capacity > intelligibility > meaning > meaning of linguistic unit > drift, tenor, purport > [adverb] (3)
in sentement (Lydg.) = ‘in sentence’: see sentence, n. 7b. Obsolete.
in sentence: = ‘in substance’. Very common in Lydgate, often as a mere expletive. Obsolete.
Of speaking or writing: with an appropriate or accurate treatment of subject matter; soundly; to the point, pertinently. Obsolete.