Word: Pentecostal
Part of speech: Adjective
Syllables: pen
te
co
stal
Definition: Of, or relating to Pentecost; Jewish holy day celebrated on the sixth of Sivan to celebrate Moses receiving the Ten Commandments
Morphemes:
Affix: Pentecost
Language: en
PoS: Proper noun
Meaning: Proper noun~ The Jewish festival of Shavuot; Jewish holy day celebrated on the sixth of Sivan to celebrate Moses receiving the Ten Commandments
Etymology Compounds: Affix: πεντηκοστή
Language: grc
Decoded: pentekoste
Meaning: fiftieth 
Affix: -al
Language: en
PoS: Suffix
Meaning: Of or pertaining to. Adjectival suffix appended to various words, often nouns, to make an adjective form. Often added to words of Latin origin, but used with other words also.