Root word

• Word origin
• A word's original form
• Older form of a word
• Base word
• A simple form inferred as the common basis from which related words in several languages can be derived by linguistic processes

The Collaborative International Dictionary Word definitions in The Collaborative International Dictionary
Etymon \Et"y*mon\, n.; pl. E. Etymons , Gr. Etyma . [L., fr. Gr. 'e`tymon the true literal sense of a word according to its derivation, an etymon, fr. ? true, real, prob, akin to Skr. sotya, E. sooth. See Sooth .] An original form; primitive word; ...

Wikipedia Word definitions in Wikipedia
Etymon is a song written by Bobby Ljunggren , Ingela Forsman and Henrik Wikström , and performed by Sonja Aldén , using the stage name "Sonya", during the Swedish Melodifestivalen 2006 . The song ended up 5th during the competition in Karlstad on 25 February ...

Douglas Harper's Etymology Dictionary Word definitions in Douglas Harper's Etymology Dictionary
"primitive word," 1570s, from Greek etymon , neuter of etymos "true, real, actual" (see etymology ). Classical Greek used etymon as an adverb, "truly, really." Related: Etymic .

Wiktionary Word definitions in Wiktionary
n. A source word of a given word.