boomlet
‘a small boom, esp. on the Stock exchanges’
Lexical development traced from the Tamil root:
boom ‘a sudden start or increase in commercial or other activity’ + O.F. -elet (double-diminutive) < Lat. ellus + F. -et, -ette < O.F. –et < Vulgar Lat. -ittum / -itta < uht < -et < Tamil iṭṭu