دغل1 دَغَلَ فِيهِ, aor. ـَ (K,) inf. n. دَغْلٌ, (TA,) He entered it like as enters he who is doing a thing that induces doubt, or suspicion, or evil opinion; (K, TA;) like as the hunter enters the lurkingplace to circumvent the game: so in the T and M. (TA.) A2:  دَغَلَ لَهُمُ الشَّرَّ He sought, or desired, to do to them evil, or mischief, when they thought that he desired to do them good. (T, TA.) 4 ادغل He (a man, TA) disappeared in a دَغَل [or place in which one fears being taken unawares]. (K, * TA.) b2:  ادغل بِهِ He acted treacherously towards him, and took him unawares. (K.) b3:  He slandered him, or calumniated him. (K.) b4:  ادغل فِى الأَمْرِ He introduced into the affair what rendered it unsound, or corrupt, (K,) or what contravened it, (JK, S, M, O,) and rendered it unsound, or corrupt. (S, M, O.) b5:  ادغلت الأَرْضُ The land became abundant [and dense (as is implied in the S)] in trees. (S, TA.) دَغْلٌ: see دَغِلٌ.دَغَلٌ Badness, corruptness, or unsoundness; or a bad, a corrupt, or an unsound, state or quality; (S, and Mgh in art. نغل;) [in an affair, &c.;] like دَخَلٌ; (S;) and a thing that induces doubt, or suspicion, or evil opinion; [in an affair; or] in a man: (Mgh ubi suprà:) or a cause of badness, corruption, or unsoundness, in an affair. (JK, T, K, TA.) Hence the saying of El-Hasan, اِتَّخُوا كِتَابَ اللّٰهِ دَغَلًا [They made the Book of God to be a cause of corruption: or perhaps they made the Book of God corrupt; i. e. they  corrupted it]. (TA.) b2:  Confusedness, or entanglement, and abundance, of plants or herbage; (M, K;) most commonly known in plants of the kind termed حَمْض, when amid غريل [i. e. غِرْيَل, app. here meaning silt, or alluvial deposit, left upon the ground by a torrent]. (M, TA.) b3: Tangled, or luxuriant, or abundant and dense, trees; (S, K;) as also دَخَلٌ. (TA.) b4: Any place in which a wile, machination, or plot, is practised; (JK;) a place in which one fears being taken unawares: (K:) and ↓ دَغِيلَةٌ signifies the same as دَغَلٌ [app. meaning such a place as is here described]: (JK, K:) the pl. of the former is أَدْغَالٌ [a pl. of pauc.] and دِغَالٌ. (K.) b5: Accord. to En-Nadr, An elevated [tract of ground such as is termed] قُفّ: and i. q. أَكَمَةٌ [a hill, or mound, &c.]: and a valley: and a level, or smooth, wide, depressed tract of land: and أَدْغَالٌ signifies mountains: and أَدْغَالُ الأَرْضِ, [tracts of] land from which water has sunk into the earth, or receded: and low, or depressed, tracts of land: and level, or smooth, tracts thereof. (TA.) دَغِلٌ, applied to a man, In whom is a bad, a corrupt, or an unsound, quality, and what induces doubt, or suspicion, or evil opinion; as also ↓ دَغْلٌ, a contraction of the former. (Mgh in art. نغل.) b2:  Applied to a place, as also ↓ مُدْغِلٌ, i. q. ذُو دَغَلٍ [app. as meaning Having tangled, or luxuriant, or abundant and dense, trees]: or obscure, or concealed; (K;) as also ↓ دَاغِلٌ. (TA.) دَغِيلَةٌ: see دَغَلٌ.دَغَاوِلُ Calamities, or misfortunes: (A 'Obeyd, JK, T, K:) erroneously written by J دَوَاغِل, (K,) and so by IF in the Mj, (TA,) as on the authority of A 'Obeyd, who said only دَغَاوِل, (K,) and thus it is in a verse of Sakhr El-Hudhalee: (TA:) [but in one of my copies of the S it is written دَغَاوِل:] it has no sing.: (K:) or, as El-Bekree says, its sing. is not known: but some say that it is دغولة [thus without any syll. signs]. (TA.) دَاغِلٌ One who seeks, or desires, to do evil, or mischief, to his companions, when they think that he desires to do them good. (T, TA. [See the next paragraph.]) b2:  See also دَغِلٌ.دَاغِلَةٌ Concealed rancour, malevolence; malice, or spite. (M, K.) A2:  Persons who seek to blame one, or to find fault with one, and to act treacherously towards one. (M, K. [See دَاغِلٌ.]) مُدْغِلٌ: see دَغِلٌ.مَدَاغِلُ The bottoms, or interior parts, of valleys; (M, K;) and the level, or smooth, tracts thereof, when their trees are numerous. (M, TA.)