baptism
burial
declined
declining
declivate
declivitous
declivous
descending
dip
dousing
downgrade
downhill
dropping
duck
ducking
dunking
engulfment
falling
immergence
immersion
inundation
sinking
souse
sousing
submergence
submersion
chipping
clipping
dripping
equipping
flipping
gripping
nipping
outstripping
ripping
shipping
sipping
skipping
slipping
stripping
tipping
tripping
whipping
zipping