نتأ1 نَتَأَ, aor. ـَ inf. n. نَتْءٌ and نُتُوْءٌ, (S, K,) It  swelled; swelled up; rose; grew up. (K.) Said of a plant, &c. (S.) b2:  نَتَأَ, (S, K,) inf. n. نُتُوْءٌ, (TA,) It protruded, or projected, from its place, without becoming separated. (S, K.) b3:  نَتَأَ It (an ulcer, or a wound,) swelled. (S, K.) b4: It (a girl's breast) swelled forth, or became prominent, or protuberant. (TA.) b5:  نَتَأَتْ She (a girl) grew up, (S,) and became marriageable. (S, K.) b6:  نَتَأَ عَلَيْهِمْ, inf. n. نَتْءٌ, He rose, or exalted himself, above them. (TA.) b7:  [You say,] تَحْقِرُهُ وَيَنْتَأُ Thou despisest him, and he riseth, or exalteth himself: (S:) or b8:  he emulateth thee: or b9:  he becometh great. A proverb, said of him who does not manifest his character or design by outward appearance, but keeps it secret: or of him who advances and exalts himself by his cunning, while thou thinkest him senseless, or negligent. Accord. to some, it is تحقره ويَنْتُو, without ء: see art. نتو. (TA.) A2: نَتَأَ He went up from the country or land to another. (TA.) A3:  تَنَأَ عَلَيْهِمْ He came upon them; syn. إِطَّلَعَ. (S, K.) 8 انتتأ He rose, or exalted himself. (K.) b2: انتتأ لَهُ He encountered him; met him; opposed  himself to him. (K, TA: the verb is explained in the K by إِنْبَرَى.)