Blend of حَدَّ (ḥadda) with uncertain second element, Dictionnaire du faisceau dialectal arabe andalou suggests أَسَاس (ʔasās, “foundation”), another intuition opts instead for حَسَّ (ḥassa, “to feel”). In the same fashion, following Lane’s comparisons, هَجَسَ (hajasa, “to come to mind, to occur”) is apparently from هَجَّ (hajja), whereas in view of عَدَسَ (ʕadasa, “to journey through; to tread hard”) (both verbs like the present with ḍamma and kasra in the non-past) these two senses perhaps instead relate to دَاسَ (dāsa, “to tread”).