Webster's Revised Unabridged Dictionary -- Volume DE

Et·wee" (ĕt·eē"), n. See Étui. Shenstone.

Et"ym (ĕt"ĭm), n. See Etymon. H. F. Talbot.

E·tym"ic (·tĭm"ĭk), a. Relating to the etymon; as, an etymic word.

Et`y·mol"o·ger (ĕt`ĭ·mŏl"·jr), n. An etymologist.

Et`y·mo·log"ic·al (-m·lŏj"ĭ·kal), a. [L. etymologicus, Gr. ετυμολογικοσ: cf. F. étymologique. See Etymology.] Pertaining to etymology, or the derivation of words.

-- Et`y·mo·log"ic·al·ly, adv.

Et`y·mo·log"i·con (-ĭ·kŏn), n. [NL., fr. Gr. ετυμολογικον, prop. neut. sing. from ετυμολογικοσ.] An etymological dictionary or manual.

Et`y·mol"o·gist (ĕt`ĭ·mŏl"·jĭst), n. [Cf. F. étymologiste.] One who investigates the derivation of words.

Et`y·mol"o·gize (-jīz), v. t. [Cf. F. étymologiser.] To give the etymology of; to trace to the root or primitive, as a word. Camden

Et`y·mol"o·gize, v. t. To search into the origin of words; to deduce words from their simple roots.

How perilous it is to etymologize at random.
Trench.

Et`y·mol"o·gy (-j), n.; pl. Etymologies (-jĭz). [L. etymologia, Gr. ετυμολογια; ετυμον etymon + λογοσ discourse, description: cf. F. étymologie. See Etymon, and -logy.]