graith
To make ready; prepare; put in order; make fit for use.
obsolete
Gowden graith'd his horse before, and siller shod behind […]
To dress (someone or oneself) or be dressed.
obsolete
At fairs he play'd before the spearmen, All gaily graithed in their gear-men.
Where it comes from
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 𐌲𐌰𐍂𐌰𐌹𐌳𐌾𐌰𐌽 (garaidjan, “to enjoin”).
Adapted from the Wiktionary entry graith (CC BY-SA 4.0).