كَثْرَة excessive in Arabic

وَلَو كنت عُذْري الصبابة لم تكن بطينا وأنساك الْهوى كَثْرَة الْأكل

And if you were excused in passionate longing, you would not have been gluttonous, and love would have made you forget excessive eating.

كَثْرَةَ excessive

'Abundance / much-ness', the object of 'made forget', accusative ('-a'), and first term of an 'of' pairing — 'the abundance of eating'. It owns the noun that follows.

From Remembering and Loving God

وقال عبد الواحد بن زيد لو رأيت الحسن، لقلت صب على هذا حزن الخلائق؛ من طول تلك الدمعة، وكثرة ذلك النشيج

Abdul-Wahid ibn Zaid said: If you saw Al-Hasan, you would say: 'The sorrow of all beings has been poured upon him,' because of the length of his weeping and the abundance of his lamentations.

وَكَثْرَةِ and abundance of

The opening particle joins this onto the previous cause as a parallel reason, and the noun then fronts its own 'of' pairing. It carries the governed ending because it shares the 'because of' that governs the earlier noun.

From Grief of the Prophet's Grandson

فثمة طريق قد بقي لا أكتمه عنك ، وهو كثرة الدعاء ،

Then there remains a path I do not hide from you, which is abundant supplication,

كَثْرَةُ the abundance

This noun, 'abundance, much', is the comment identifying the path, in the plain subject ending, and it heads a possessive pairing with the next word, owning it. Arabic says 'much of X' by making 'abundance' the owner-noun and X the owned noun set right after.

From True Devotion

وكثرة الإلحاح على مولاك بكل دعاء مأثور تستحضره أو غير مأثور ،

And persistent supplication to your Lord with every remembered or unremembered prayer,

وَكَثْرَةُ and abundance

This is the bound wa- 'and' plus a noun, 'and abundance of', that heads a possessive pairing with the next word, owning it. Coordinated onto the earlier parts of the path, it means 'much X' by making 'abundance' the owner-noun set before what is multiplied.

From True Devotion