πάτερ, ἄφες αὐτοῖς, οὐ γὰρ οἴδασιν τί ποιοῦσιν → father, forgive them, for they know not what they do
a primitive root; to attend as a menial or worshipper; figuratively, to contribute to: minister (unto), (do) serve(- ant, -ice, -itor), wait on.