deu-

I. deu-¹

To lack, be wanting.

1. Possibly suffixed form *deu-s-.

a. tire¹, from Old English tēorian, tyrian, to fail, tire (< “to fall behind”), from Germanic *teuzōn;

b. deontology, from Greek dein, to lack, want.

2. Suffixed form *deu-tero-. deutero-; deuteragonist, deuterium, Deuteronomy, from Greek deuteros, “missing,” next, second.

 

[Pokorny 3. deu- 219.] (For suffixed zero-grade form *du-s-, combining form of *dew-es-, a lack, see dus-.)

 

[In Pokorny 3. deu- 219.]

  II. deu-²

To do, perform, show favor, revere.

Derivatives include embellish and dynamite.

1. Suffixed form *dw-eno-. bonbon, bonito, bonny, bonus, boon², bounty; bonanza, bonhomie, debonair, from Latin bonus, good (< “useful, efficient, working”).

2. Adverbial form *dw-enē. benediction, benefaction, benefactor, benefic, beneficence, benefit, benevolent, benign, herb bennet, from Latin bene, well.

3. Diminutive *dw-en-elo-. beau, beauty, belle; beldam, belladonna, belvedere, embellish, from Latin bellus, handsome, pretty, fine.

4. Possibly suffixed zero-grade form *dw-eye-. beatitude; beatific, beatify, from Latin beāre, to make blessed.

5. Possible (but unlikely for formal and semantic reasons) suffixed zero-grade form *du-nə-. dynamic, dynamite, dynast, dynasty; aerodyne, from Greek dunasthai, to be able.

 

[Pokorny 2. (deu-) 218.]

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