كأد1 كَأَدَ, aor. ـَ He was in an evil state, and broken [in spirit] by grief, or mourning; or was in grief, unhappy, sorrowful, or sad, syn. كَئِبَ. (K.) 5 تَكَأَّدَنِى and ↓ تَكَآءَدَنِى It (a thing, or an affair,) was difficult to me; it distressed, troubled, fatigued, or wearied, me. (S, L, K.) b2:  تكأّد الشَّىْءَ He took, or imposed, upon himself, or undertook, the thing, in spite of difficulty, trouble or inconvenience; he constrained himself to do the thing, notwithstanding it was difficult, troublesome, or inconvenient, to him. (L, K.) You say تَكَأَّدْتُ الذَّهَابَ إِلَى فُلَانٍ, meaning, I [constrained myself to go, and] went to such a one, in spite of difficulty, trouble, or inconvenience. (Az, L.) b3:  He endured the thing; struggled  with, or against, it; contended with its difficulty, or severity; underwent difficulties, troubles, or inconveniences, in doing it; endured, or bore, its heat and severity; syn. كَابَدَهُ, and صَلِىَ بِهِ. (IAar, L, K.) 6 تَكَاَّ^َ see 5.كَأْدَآءُ Difficulty. (IAar, L, K.) b2:  Grief; sorrow; mourning; syn. حُزْنٌ: so accord. to the K; but accord. to IAar [and the L] fear; syn. خَوْفٌ: (TA:) and caution: (IAar, L.) b3:  Injustice. (K.) b4:  A dark night. (IAar, L, K.) b5:  See also كَؤُودٌ.عَقَبَةٌ كَؤُودٌ, (S, L, K,) and ↓ كَأْدَآءُ, (L, K,) A mountain-road difficult of ascent. (S, L, K. *) Such a road is also termed [simply] كَأْدَآءُ, and صُعَدَآءُ: [in the K it is said, that كُؤَدَآءُ is syn. with صُعَدَآءُ:] and كَؤُودٌ [in like manner, as a subst.,] signifies. a difficult place of ascent: like  صَعُودٌ. (L, TA.)