اِحْلَوْلَيْتُهُ
Translation: I considered it sweet.
The source also treats this word under semantic correspondence with Istifʿāl. Correspondence means that certain attested uses have related meanings; it does not make the two patterns universally interchangeable.
AspectSound reading
CorrespondenceSimilar meaning in an attested use
False inferenceEvery verb of both forms is synonymous
SafeguardRetain each verb's lexical meaning
This correspondence is specifically noted among the uncommon features.