Word: stepgrandson
Part of speech: Noun
Syllables: step
grand
son
Definition: The grandson of one's stepgrandfather's wife or stepgrandmother's husband from previous marriage, or the stepson of one's child.
Morphemes:
Affix: step-
Language: en
PoS: Prefix
Meaning: A prefix used before father, mother, brother, sister, son, daughter, child, and so forth, to indicate that the person being identified is not a blood relative but is related through the marriage of a parent.
Affix: grand-
Language: en
PoS: Prefix
Meaning: of a generation removed from the original noun
Affix: son
Language: en
PoS: Noun
Meaning: One's male offspring.