mid-15c., gadden, "go quickly, hurry," of uncertain origin, perhaps from gad (n.) "sharp stick for driving oxen" on the notion of moving as animals do when being driven by a gad. There also was a Middle English gadeling (Old English g?deling) "kinsman, companion in arms; fellow, man," but which had a deteriorated sense of "person of low birth, rogue, vagabond" by c. 1300 (it also had a meaning "wandering," but this is attested only from 16c.). Related: Gadding.
gad (n.)
c. 1300, "a goad, sharp pointed stick to drive oxen, etc.;" c. 1400, "sharp-pointed metal spike," from Old Norse gaddr "spike, nail," from Proto-Germanic *gadaz "pointed stick" (see yard (n.2)). Attested earlier as "metal bar or rod, ingot" (mid-13c.) hence also in Middle English a unit of length in land-measure, varying from 10 to 16 feet. Not related to goad (n.), but perhaps influenced by it in sense.
例文
1. Don 't think you 'll keep me here while you gad about.
あなたがぶらぶらしている間に私はここにいることを期待しないでください。
2.GABA yield was significantly positively correlated with shoot length and GAD activity in germinated brown rice.
発芽玄米のGABA生成量は、芽長と GAD の活性と極めて顕著な正の相関を示した。
3.ResultsAfter seizures,the number of GABA receptors and the expression of GAD model group than group.