dugan

irreg v/t 3^rd pres déag pl dugon past dohte ptp gedugen (usu impersonal) to avail, be worth, be of use, be capable of, competent, or good for anything; thrive, be strong, able, fit, vigorous; be good, virtuous, kind, honest, bountiful, kind, liberal, (1) for a person (dat), (2) for a purpose; [dugan is the third of twelve Anglo-Saxon verbs called preterite-presents, and given under ágan. The infinitive dugan and the past déag/dugon, retaining preterite inflections, are taken from the past tense of a strong verb déogan, past déah/dugon, ptp gedogen, ascertained from déah/dugon, which shows the ablaut or internal change of the vowel in the past tense of the twelfth class of Grimm's division of strong verbs, and requires by analogy of other verbs of the same class the infinitive deogan, and the ptp dogen; thus we find the original verb déogan, past déah/dugon, ptp dogen. The weak past dohte/dohton [= duhte/duhton], is formed regularly from the infinitive dugan.]