عَرْكَةٌ

as meaning A war, or battle, is postclassical. (TA.)

لَقِيتُهُ عَرْكَةً, (S, O, K,) and عَرْكَةً بَعْدَ عَرْكَةٍ, and عَرْكَتَيْنِ, (TA,) and عَرَكَاتٍ, (S, O, K,) mean I met him once, (S, O, K,) and time after time, and twice, (TA,) and several times: (S, O, K:) the noun not being used otherwise than adverbially. (TA.)