Word: riyos
Part of speech: Noun
Syllables: riy
os
Definition: Plural of riyo. A Japanese ounce, especially of silver; a tael.
Morphemes:
Affix: riyo
Language: en
PoS: Noun
Meaning: A Japanese ounce, especially of silver; a tael.
Etymology Compounds: Affix: 両
Language: ja
Decoded: Liang 
Meaning: ryō
Affix: -s
Language: en
PoS: Suffix
Meaning: Used to form plurals of foreign words, to clarify pronunciation, such as “banana’s” or “pasta’s”.