V. S. Apte, The Practical Sanskrit–English Dictionary. Look up any word of the Gita in Devanagari, IAST or Harvard-Kyoto, or browse the headwords letter by letter.
Entry चिति
चितिcitif.Collecting, gathering.
[चि-आधारे क्तिन्]
Collecting, gathering.
A heap, multitude, quantity.
A layer, pile, stack; सभ्यावसथ्यं चितयोऽसवो हि ते Bhāg.3.13.37.