germane
a doublet of german, meaning ‘having the same parents’
Lexical development traced from the Tamil root:
E. jerman, iermane, germayne, germain, germayn < Lat. germanus ‘full, own (of brothers and sisters); one's own brother, related to germen ‘sprout, bud’ < perhaps a dissimilation of *gen(e)-men- < juhm < gene- < Tamil īṉ