suppliant
noun
[ ˈsʌplɪənt ]
• a person making a humble or earnest plea to someone in power or authority.
suppliant
adjective
• making or expressing a plea, especially to someone in power or authority.
• "their faces were wary and suppliant"
Origin:
late Middle English (as a noun): from French, ‘beseeching’, present participle of supplier, from Latin supplicare (see supplicate).