تعس1 تَعَسَ, aor. ـَ inf. n. تَعْسٌ; (S, A, Msb, K, &c.;) and تَعسَ, aor. ـَ (Sh, AHeyth, A, IAth, K;) but the latter is not chaste; (A, TA;) or the former is used in addressing a person, saying تَعَسْتَ; and the latter, in narration; (K;) accord. to Sh; but ISd says that this is strange; (TA;) He fell, having stumbled; contr. of اِنْتَعَشَ: this is the primary signification: (S:) or he stumbled and fell (AHeyth, A, IAth, K) upon his hands and mouth, (AHeyth, TA,) or upon his face: (IAth, TA:) or he fell upon his face: (Er-Rustamee, Msb, TA:) [and this may also be meant by one of the explanations of the inf. n. in the TA, which is نُكْسٌ فِى سَفَالٍ:] or he fell in any manner. (TA.) You say, by way of imprecation, تَعَسَ وَانْتَكَسَ, meaning May he fall upon his face, and not rise after his fall until he fall a second time. (Msb.) And تَعَسَ فَمَا انْتَعَشَ وَشِيكَ فَلَا انْتَقَشَ [May he fall, having stumbled, or stumble and fall, &c., and not rise again; and may he be pricked with a thorn, and not extract the thorn]. (TA.) And accord. to certain of the Kilábees, تَعَسَ signifies He missed his proof in litigation, and the object of his search in seeking. (TA.) b2:  He perished. (Aboo-'Amr  Ibn-El-'Alà, S, K.) You say, تَعَسْتَ, as though meaning Mayest thou perish. (ISh, TA.) b3: He became far removed. (A, K.) b4:  He became lowered, or degraded. (A, K.) You say also, تَعَسَ جَدُّهُ [His fortune, or good fortune, fell: or may his fortune, or good fortune, fall]. (K in art. عثر.) A2:  تَعَسَهُ اللّٰهُ, [aor. ـَ inf. n. تَعْسٌ;] (A'Obeyd, A, Msb, K;) and ↓ اتعسهُ; (AHeyth, S, A, Msb, K;) the former unknown to Sb; (Az, TA;) God made him to fall, having stumbled: (S:) or to stumble and fall (AHeyth, A, K) upon his hands and mouth, (AHeyth, TA,) or upon his face: (TA:) or to fall upon his face: (Msb:) or to fall in any manner. (TA.) b2:  God destroyed him; or made him to perish. (A'Obeyd, S, K.) b3:  God made him to become far removed. (A, K.) b4:  God lowered, or degraded, him. (A, K.) b5:  You say, by way of imprecation, تَعْسًا لَهُ May he [fall, having stumbled: or, stumble and fall: or, stumble and fall upon his hands and mouth: or, upon his face: or] fall upon his face: (Msb:) or may God make destruction to cleave to him: (S, TA:) [or may God destroy him.] Aboo-Is-hák says, in explanation of the phrase فَتَعْسًا لَهُمْ, in the Kur xlvii. 9, that it may be in the accus. case as meaning اللّٰهُ ↓ أَتْعَسَهُمُ. (TA.) A man also says, by way of imprecation, to his swift and excellent camel, when it stumbles, تَعْسًا, meaning May God throw thee down upon thy nostrils: expressing his disapproval of the stumbling of a beast of such age and strength: but if it be not a swift and excellent beast, and stumble, he says to it لَعًا. (TA.) You say also, اللّٰهُ ↓ أَتْعَسَ جَدَّهُ [May God make his fortune, or good fortune, to sink!] (A.) 4 أَتْعَسَ see تَعَسَهُ, in three places.تَعْسٌ inf. n. of 1 [which see, throughout]. b2: Also Evil; mischief. (K.) تَعِسٌ: see what next follows.تَاعِسٌ (A, K) and ↓ تَعِسٌ (Msb, K) act. part. ns. of 1, [i. e., respectively, of تَعَسَ and تَعِسَ, accord. to rule, used intransitively,] (A, Msb, K,) both applied to a man: (K:) and the former, to fortune, or good fortune. (A.) مَتْعَسَةٌ [A cause of falling after stumbling: or of stumbling and falling &c. (See 1.)] You say, هٰذَا الأَمْرُ مَنْحَسَةٌ مَتْعَسَةٌ [This affair is a cause of ill luck; a cause of falling &c.]. (A, TA.)