(comparative graither or more graith, superlative graithest or most graith)
From Middle English graith, grayth, greith, from Old Norse greiðr (“ready, available, free”), from Proto-Germanic *garaidijaz (“ready, orderly”), from Proto-Germanic *ga- + Proto-Indo-European *rēydʰ- (“to count, order”). Cognate with Old English ġerǣde (“ready, prompt”), German gerade (“straight, direct”), Gothic (garaids, “exact”). More at ready.
(third-person singular simple present graiths, present participle graithing, simple past and past participle graithed)
From Middle English graithen, greithen, graiden, grathen, from Old Norse greiða (“to make ready, prepare, arrange, disentangle”), from Proto-Germanic *garaidijaną (“to prepare, put in order”). Cognate with Old English ġerǣdan (“to arrange, dispose, order, provide for, harness”), Gothic (garaidjan, “to enjoin”).
From Middle English graith, graythe, greithe, from Old Norse greiði (“preparation, arrangement”), from Proto-Germanic *garaidiją (“apparatus, gadget”). Cognate with Icelandic greiðe, greiði (“preparation, arrangement, order, hospitality”), Faroese greiði (“requisite articles”), Norwegian greida (“implements, tackle”), Norwegian greide (“harness”).