These are past tense verbs/past participles created from base words that end in a ‘t’ or ‘d’, plus the suffix ‘ed’, which in these words is pronounced as a syllable.

When a base word ends with a ‘short’ vowel then one consonant letter, we double the last consonant before adding suffixes starting with vowels. This maintains the “short” vowel sound: a as in batted (not bated), e as in wedded (not weded), i as in fitted (not fited), o as in jotted (not joted), u as in gutted (not guted).

Base word ends with 2-3 consonant lettersDouble last consonant of base word before adding edDouble last consonant of longer/more complex base word before adding ed
acted
banded
belted
bolded
bolted
bonded
dented
ducted
felted
fended
folded
funded
gelded
gilded
handed
hinted
hunted
jilted
jolted
kilted
landed
lilted
melded
melted
mended
minted
panted
pelted
ponded
punted
ranted
rented
sanded
silted
tended
tilted
tinted
vended
vented
welded
wended
wilted
winded
batted
bedded
budded
butted
dotted
fitted
gadded
gutted
hatted
hotted
jetted
jotted
jutted
kidded
kitted
lidded
matted
netted
nodded
nutted
padded
patted
petted
pitted
podded
potted
putted
ratted
rotted
rutted
tutted
vetted
wedded
wetted
witted
blended
blinded
blonded
branded
trended
blunted
chanted
glinted
granted
grunted
planted
printed
shunted
slanted
stinted
stunted
squinted
splinted
sprinted
smelted
quilted
stilted
scolded