عِنْدَأْوٌ Bold, or daring, (IDrd, O, Ḳ,) to attempt, or undertake, things; applied to a man; (IDrd, O;) as alsoعِنْدَأْوَةٌ↓: (Ḳ:) which latter is [also] applied to a she-camel, as meaning bold, or fearless. (IAạr, Sh.)

عِنْدَأْوَةٌ Difficulty, and perverseness, (Z, Ḳ, TA,) in a man: (Z, TA:) and roughness, or hardness, of behaviour: (Ḳ:) and opposition, and wrongdoing: (L, TA:) and deceit, or guile: (Ḳ, TA:) and pronounced by some without ء. (TA.) One says, تَحْتَ طِرِّيقَتِكَ لَعِنْدَأْوَةٌ Beneath thy silence is deceit, or guile: (Ḳ:) or difficulty, and perverseness: (Z, TA:) or opposition, and wrongdoing. (L, TA.) [See also طِرِّيقَةٌ.]

And (accord. to Lḥ, TA) العِنْدَأْوَةُ signifies أَدْهَى الدَّوَاهِى [app. meaning The greatest of calamities]. (Ḳ, TA.)

See also the former paragraph.