वाल्मीकि-रामायणम् vālmīki-rāmāyaṇam - book-6, chapter-46, verse-38

उल्लिखन्तौ सुतीक्ष्णाभिर्दंष्ट्राभिरितरेतरम् ।
सिंहशार्दूलसदृशौ सिंहशार्दूलचेष्टितौ ॥३८॥

38. ullikhantau sutīkṣṇābhirdaṃṣṭrābhiritaretaram ,
siṃhaśārdūlasadṛśau siṃhaśārdūlaceṣṭitau.

38. ullikhantau sutīkṣṇābhiḥ daṃṣṭrābhiḥ itaretaram
siṃhaśārdūlasadṛśau siṃhaśārdūlaceṣṭitau

38. Scratching each other with their very sharp tusks, they resembled lions and tigers, displaying the ferocity of lions and tigers.

Words meanings summery:

• उल्लिखन्तौ (ullikhantau) - scratching, scraping

• सुतीक्ष्णाभिः (sutīkṣṇābhiḥ) - with very sharp

• दंष्ट्राभिः (daṁṣṭrābhiḥ) - with tusks, with fangs

• इतरेतरम् (itaretaram) - each other, mutually

• सिंहशार्दूलसदृशौ (siṁhaśārdūlasadṛśau) - resembling lions and tigers

• सिंहशार्दूलचेष्टितौ (siṁhaśārdūlaceṣṭitau) - having the actions/behavior of lions and tigers

Words meanings and morphology

उल्लिखन्तौ (ullikhantau) - scratching, scraping

(adjective)

Nominative, masculine, dual of ullikhant

ullikhant - scratching, scraping

Present Active Participle

From root likh (to write, scratch) with prefix ut

Prefix: ut

Root: likh (class 6)

सुतीक्ष्णाभिः (sutīkṣṇābhiḥ) - with very sharp

(adjective)

Instrumental, feminine, plural of sutīkṣṇa

sutīkṣṇa - very sharp, exceedingly keen

Compound type : karmadhāraya (su+tīkṣṇa)

• su – good, well, very
  indeclinable
• tīkṣṇa – sharp, keen, pungent
  adjective

दंष्ट्राभिः (daṁṣṭrābhiḥ) - with tusks, with fangs

(noun)

Instrumental, feminine, plural of daṃṣṭrā

daṁṣṭrā - tusk, fang, large tooth

इतरेतरम् (itaretaram) - each other, mutually

(indeclinable)

Note: Often treated as an indeclinable compound.

सिंहशार्दूलसदृशौ (siṁhaśārdūlasadṛśau) - resembling lions and tigers

(adjective)

Nominative, masculine, dual of siṃhaśārdūlasadṛśa

siṁhaśārdūlasadṛśa - resembling lions and tigers

Compound type : dvandva (siṃha+śārdūla+sadṛśa)

• siṃha – lion
  noun (masculine)
• śārdūla – tiger
  noun (masculine)
• sadṛśa – resembling, similar, like
  adjective

सिंहशार्दूलचेष्टितौ (siṁhaśārdūlaceṣṭitau) - having the actions/behavior of lions and tigers

(adjective)

Nominative, masculine, dual of siṃhaśārdūlaceṣṭita

siṁhaśārdūlaceṣṭita - acting like lions and tigers, having the movements of lions and tigers

Compound type : bahuvrīhi (siṃha+śārdūla+ceṣṭita)

• siṃha – lion
  noun (masculine)
• śārdūla – tiger
  noun (masculine)
• ceṣṭita – action, movement, behavior
  noun (neuter)
  Past Passive Participle
  From root ceṣṭ (to move, to act), used as a noun here.
  Root: ceṣṭ (class 1)