Best (bĕst), a.; superl. of Good. [AS. besta, best, contr. from betest, betst, betsta; akin to Goth. batists, OHG. pezzisto, G. best, beste, D. best, Icel. beztr, Dan. best, Sw. bäst. This word has no connection in origin with good. See Better.] 1. Having good qualities in the highest degree; most good, kind, desirable, suitable, etc.; most excellent; as, the best man; the best road; the best cloth; the best abilities.
When he is best, he is a little worse than a man.
Shak.
Heaven's last, best gift, my ever new delight.
Milton.
2. Most advanced; most correct or complete; as, the best scholar; the best view of a subject.
3. Most; largest; as, the best part of a week.
Best man, the only or principal groomsman at a wedding ceremony.