Eelam (Tamil: ஈழம், īḻam, also spelled Eezham, Ilam or Izham in English) is the nativeTamil name for the South Asian island state of Sri Lanka. Eelam is also a name for the spurge (a plant), toddy (an intoxicant) and gold. The exact etymology and the original meaning of the word are not clearly known, and there are number of conflicting theories. The Retroflex approximant l in Eelam is a characteristic phoneme for Dravidian languages, retained in closely related Tamil and Malayalam. Conventionally it has been represented in the Latin script with the digraph zh.
The Tamil meaning of "Eelam" is homeland.The word "ஈழம்" (Eelam) has similarities with the Tamil word "இல்லம்" (Illam), which means home or homeland. The earliest use of the word is found in a Tamil-Brahmi inscription as well as in the Sangam literature. The Tirupparankunram inscription found near Madurai in Tamil Nadu and dated on palaeographical grounds to the 1st century BCE, refers to a person as a householder from Eelam (Eela-kudumpikan). The inscription reads,
: erukatur eelakutumpikan polalaiyan "Polalaiyan, (resident of) Erukatur, the husbandman (householder) from Eelam." .
The Sangam literature Paṭṭiṉappālai, mentions Eelattu-unavu (food from Eelam). One of the prominent Sangam Tamil poets is known as Eelattu Poothanthevanar meaning Poothan-thevan (proper name) hailing from Eelam. (Akanaṉūṟu: 88, 231, 307; Kuṟuntokai: 189, 360, 343; Naṟṟiṇai: 88, 366) The Tamil inscriptions from the Pallava & Chola period dating from 9th century CE link the word with toddy, toddy tapper's quarters (Eelat-cheri), tax on toddy tapping (Eelap-poodchi), a class of toddy tappers (Eelath-chanran). Eelavar is a caste of toddy tappers found in the southern parts of Kerala. The Tamil lexicons Thivaakaram, Pingkalam and Choodaamani, dating from c. 8th century CE, equate the word with the Sinhala language and with gold. Eela-kaasu and Eela-karung-kaasu are refers to coinages found in the medieval inscriptions of Tamil Nadu.