[2] Linguistic knowledge about regular sound changes in Celtic languages (McCone, 1996) and analysis of the University of Wales’ Proto-Celtic lexicon and of Julius Pokorny’s Indogermanisches etymologisches Wörterbuch permit *Deino-kwekwto- ‘swift concoction’ as a plausible Proto-Celtic reconstruction for this theonym, hence the original name of the deity may have signified 'swift potion' or, by extrapolation even 'He-who-is-Swift-with-Healing-Remedies'.
[9] Dian Cécht's daughters were Airmed the she-leech (female physician) and Étan the poet according to the aforementioned Book of Invasions tract.
[10][11] He also ground medicinal herbs nearby on Lusmag "Herb-plain",[11][10] or else, he chanted spells over the well together with his two sons Miach and Octriuil and daughter Airmed.
[9] Dian Cécht, when questioned on his ability, boasted to be able mend anyone but those who have been decapitated (or whose brain or spinal cord have been severely damaged);[14] this he presumably accomplished using the Tipra Sláíne.
[16][17] The Morrígú, the Dagda's fierce wife, had borne a son of such terrible aspect that the physician of the gods, foreseeing danger, counselled that he should be destroyed in his infancy.
[17] When this was done, Dian Cecht opened the infant's heart, and found within it three serpents, capable, when they grew to full size, of depopulating Ireland.
Therefore Diancecht slew it; There rude reason for clean destroying it, For preventing it from wasting Worse than any wolf pack, from consuming utterly.
Known to me is the grave where he cast it, A tomb without walls or roof-tree; Its ashes, evil without loveliness or innocence Found silent burial in noble Barrow.
Against eructation, against spear-thong (amentum), against sudden tumour, against bleeding caused by iron, against... which fire burns, against.... which a dog eats, ...that withers: three nuts that... three sinews that weave (?).
[23] According to the Dindsenchas, Corand is implied to be the son of Dian Cecht and summoned a swine called Caelcheis from the Dagda's harp, which the champions of Connacht chased to Magh Coraind.