كيف2 كَيَّفْتُهُ فَتَكَيَّفَ, used by the Muslim theologians, (K, TA,) verbs derived from كَيْفَ, (TA,) [signifying I specified by the ascription of its quality and it became so specified,] are formed in accordance with analogy, not heard from the Arabs. (K, * TA.) 5 تَكَيَّفَ: see what next precedes.كَيْفِيَّةٌ Quality as answering to “ how? ”; mode, or manner, of being.كَيْفُوفِيَّةٌ for كَيْفِيَّةٌ: see تَيْسِيَّةٌ.