Word: Pentecostally
Part of speech: Adverb
Syllables: pen
te
co
sta
lly
Definition: In a Pentecostal way.
Morphemes:
Affix: Pentecost
Language: en
PoS: Proper noun
Meaning: Proper noun~ Pentecostal manifestation, such as in a church service.
Etymology Compounds: Affix: πεντηκοστή
Language: grc
Decoded: pentekoste
Meaning: fiftieth 
Affix: -al
Language: en
PoS: Suffix
Meaning: Forming nouns, especially of verbal action.
Affix: -ly
Language: en
PoS: Suffix
Meaning: Used to form adverbs from adjectives.