The proper adjective is Roman (of or from Rome, or the Roman Empire).
The sound-alike word is roaming (moving about).
Roman (in katakana) = ロマン
In Roman numerals 13 is XIII.
11 is XI in Roman numerals.
MM
If you spell him Amor, he is.
Just the way you spell them today. They haven't changed. The only change was from the Greek to the Roman.
II
Ρωμαϊκός [RomaeekOs]
un roman
They called him Neptune.
LXXXIX.
Penny