Monier-Williams: A Sanskrit-English Dictionary (p. 533)
nāgakesara, m. Mesua roxburghii Vāsant.; n. its blossom Suśr. (-cūrṇaka, L.); a kind of steel, L.

Monier-Williams: A Sanskrit-English Dictionary (p. 533)
nāgapuṣpa, m. N. of sev. plants MBh. Hariv. Suśr. &c. (= Mesua Roxburghii, Rottlera Tinctoria, and Michelia Champaka L.); (ī) f. = -damanī Bhpr.; n. the blossom of Mesua Roxburghii Var.; -phalā f. Benincasa Ceriftra L.; -pikā f. yellow jasmine L.

Tamil Lexicon, University of Madras (p. 1532)
curuḷi: 1. Iron-wood of Ceylon, l. tr., Mesua ferrea; 2. Telegraph-plant

Tamil Lexicon, University of Madras (p. 334)
iruḷmaram: Ironwood of Ceylon, l. tr., Mesua ferrea

Tamil Lexicon, University of Madras (p. 2196)
nāgappū: Iron wood of Ceylon

Tamil Lexicon, University of Madras (p. 2201)
nāṅku: 01 nāṅku – tal, to shrink in spirit, become nerveless
02 interest on debt, paid in grain
03 mesua

Tamil Lexicon, University of Madras (p. 2303)
nīrnāṅkal: Longleaved large-flowered iron wood, l. tr. Mesua ferrea speciosa

Dymock, Warden, Hooper: Pharmacographia Indica (vol. I, pp. 170-171)
Mesua ferrea, Guttiferae
Fig.- Iron wood tree (Eng.)
This beautiful tree, with its large Cistus-like white flowers, called in Sanskrit Kanjalkama and Nāgkesara, is a favourite of the Indian poets. In the Naishada the poet compares the petalsof the flowers from which the bees were scattering the pollen of its golden anthers, to an alabaster wheel on which Kamadeva was whetting his arrows, while the sparks of fire were dispersed in every direction. It is the Castanea rosea indica of Rheede, so called, because the fruits are like chestnuts in size and shape. The dried blossoms are prescribed by Hindu physicians as an adjunct to medicinal oils on account of their fragrance, and are also considered to have astringent and stomachic properties. Powdered and mixed with ghč (liquid butter) they are recommended by most of the later Hindu writers in bleeding piles, and burning of the feet. The root bark of Mesua ferrea contains much resinous juice, which exudes freely when it is wounded; it has a reddish brown epidermis, consisting of ten or more rows of brick-shaped cells, full of condensed resin. Within the epidermis is a variable number of rows of cells of the same shape, yellow, refractive, and containing resinous juice; the medullary rays are also yellow and refractive; there are numerous large laticiferous vessels; the bark is mildly astringent and feebly aromatic, but is not bitter as stated in the Pharmacopoeia of India. Rheede says that combined with ginger it is given as a sudorific. The oil of the seeds is used as an embrocation in rheumatism and as a healing application sores. A poultice of the leaves made with milk and cocoanut oil is applied to the head in severe colds. (Rheede.) On the whole, the plant may be classed with the terebinthinate astringents.