[dow] vi dought or dowed ; dow.ing [ME dow, deih have worth, am able, fr. OE deah, deag; akin to OHG toug is worthy, is useful--more at doughty] (bef. 12c) chiefly Scot: to be able or capable Dow n (1949): dow-jones average
DOW
Meaning of DOW in English
Merriam-Webster English vocab. Английский словарь Merriam Webster. 2012