Brown-Driver-Briggs (BDB)
H6423
H6423 פְּלֹנִי a certain one (prop. one defined , a particular one ), always joined with אַלְמֹנִי (prop. one not mentioned )
Brown-Driver-Briggs Hebrew Lexicon (BDB), 1906 — public domain
Strong's H6423 · Hebrew
ploniy
pel-o-nee'
from 6395; such a one, i.e. a specified peccrson