Canto 3 -
Araṇya-kāṇḍa
Chapter 47: Rāvaṇa Reveals his Identity to Sītā
Text 3.47.18
तस्य भ्राता तु द्वैमात्रो लक्ष्मणो नाम वीर्यवान्।
रामस्य पुरुषव्याघ्रः सहायः समरेऽरिहा॥
tasya bhrātā tu dvaimātro lakṣmaṇo nāma vīryavān
rāmasya puruṣa-vyāghraḥ sahāyaḥ samare ’rihā
tasya = His; bhrātā tu dvaimātraḥ = stepbrother; lakṣmaṇaḥ = Lakṣmaṇa; nāma = named; vīryavān = is heroic; rāmasya = is Śrī Rāma’s; puruṣa-vyāghraḥ = that tiger among men; sahāyaḥ = assistant; samare = in battle; arihā = and a killer of His enemies.
His stepbrother named Lakṣmaṇa is heroic.1 That tiger among men is Śrī Rāma’s assistant and a killer of His enemies in battle.
1 “Stepbrother” here means that He was born from His mother’s co-wife. Technical note: dvaimātraḥ dvayor mātror apatyaṁ sāpatnika-mātuḥ putra ity arthaḥ.