Word: roller
Part of speech: Noun
Syllables: roll
er
Definition: A police patrol car or patrolman (rather than an unmarked police car or a detective)
Morphemes:
Affix: roll
Language: en
PoS: Noun
Meaning: An official or public document; a register; a record
Etymology Compounds: Affix: rotulus
Language: ML.
Decoded: rotulus
Meaning: a roll, list, catalogue, schedule, record, a paper or parchment rolled up
Affix: -er
Language: en
Meaning: agent noun
Etymology Compounds: Affix: -ārius
Language: la
Decoded: -arius
PoS: Suffix
Meaning: -er; Used to form nouns denoting an agent of use, such as a dealer or artisan, from other nouns.