Open syllable lengthening: -le words

Trisyllabic laxing ( >= 3 syllables); open syllable lengthening (2 syllabes)

Middle Eng:

p/b/m:


staple, maple (long a)
apple (short a), see pp

label, able, sable, stable, cable, fable (long a)
libel, tribal, Bible (long i)

pupil, rouble, scruple (long u)
rubble (short u), see bb
hemal (long e)



t/d/n:



saddle (short a),  see dd
huddle (short u), see dd

final, vital, tidal, title, entitle, bridal, idle, sidle, bridle, unbridle, spinal (long i)
total, nodal, yodel (long o)
brutal (long u)
cradle, ladle, banal, fatal, (long a)
penal, venal, renal (long e)

v/f:

evil (long e)
naval, graval (long a)
rival, stifle, rifle, trifle (long i)



g/k:

fin'agle (long a)
bugle (long u)
bogle (long o)
legal, regal (long e)
frugal (long u)
bagel (long a)
yokel, mogul (long o)