spittle
n. US //ˈspɪtəɫ// UK //spˈɪtəl// spit·tle
Alteration of dialectal spattle (by association with spit (noun)), from Old English spātl, which is related to spǣtan (whence spit (verb)).
Representing a frequentative form of spit (“a spade's depth”), equivalent to spit + -le.