Dana (दानम्)
Dana (Samskrit : दानम्) is the tradition of 'giving away' or 'donation' without expecting any return' is practiced widely in the world as 'philanthropy', has largely been driven by traditional faith-based motivation while the practice of purpose-based or secular giving is slowly gaining ground in the present day society. Traditionally the act of 'giving' involved a complex and variegated thought process of people who 'gave' in many forms (water, food, money) following rituals (shraddha, yajnas), themes (annadana, vratas, digging of wells for public welfare), ways (gupt daan : unknown to anyone, visible to everyone), times (kartika masa) and methods (scriptural procedures).
Etymology
The word Dana is derived from the dhatu 'दा' दाने with the following given in Nighantu used to mean 'giving' 'distribution' 'bestowing' ' presentation' 'generous'
दाति दाशति दासति राति रासति पृणक्षि पृणाति शिक्षति तुञ्जत मंहते इति [ दश ] दानकर्माणः। २० । (Nighantu 3.20) [1]
Amarakosa defines Dana as the material given to devatas, brahmanas and others
देवब्राह्मणादिसम्प्रदानकद्रव्यमोचनम् . तत्पर्य्यायः . त्यागः २ विहापितम् ३ उत्सर्जनम् ४ विसर्जनम् ५ विश्राणनम् ६ वितरणम् ७ स्पर्शनम् ८ प्रतिपादनम् ९ प्रादेशनम् १०निर्व्वपणम् ११ अपवर्जनम् १२ अंहतिः १३ .इत्यमरः
Defining Dana, Shri. Sanjay Agarwal says dana is a sub-set of giving