Word: pingback
Part of speech: Noun
Syllables: ping
back
Definition: A message automatically sent to a blog when one of the blogger's entries is referenced by another blogger.
Morphemes:
Affix: pe
Language: en
PoS: Noun
Meaning: The seventeenth letter of many Semitic alphabets/abjads (Phoenician, Aramaic, Hebrew פ, Syriac ܦ, and others; Arabic has the analog faa).
Affix: -ing
Language: en
PoS: Suffix
Meaning: Used to form uncountable nouns from verbs denoting the act of doing something, an action.
Affix: back
Language: en
PoS: Verb
Meaning: To write upon the back of, possibly as an endorsement.