Samaritan
Pronunciation: /səˈmarɪt(ə)n/
noun
- 1 (usually Good Samaritan) a charitable or helpful person (with reference to Luke 10:33): suddenly, miraculously, a Good Samaritan leaned over and handed the cashier a dollar bill on my behalf

Origin:
from late Latin Samaritanus, from Greek Samareitēs, from Samareia 'Samaria'. The New Testament parable of the Good Samaritan reflects a proverbial hostility between Jews and Samaritans