leaflet
‘one of the segments of a compound leaf; a small leaf or leaf like part’
Lexical development traced from the Tamil root:
leaf ‘leaf of a plant’ + O.F. -elet (double-diminutive) < Lat. ellus + F. -et,-ette < O.F. –et < Vulgar Lat. -ittum / -itta < uht < -et < Tamil iṭṭu