Word: thiefly
Part of speech: Adverb
Syllables: thief
ly
Definition: Like a thief; thievishly.
Morphemes:
Affix: thief
Language: en
PoS: Noun
Meaning: One who carries out a theft.
Affix: -ly
Language: en
PoS: Suffix
Meaning: Used to form adverbs from adjectives.