योगवासिष्ठः yogavāsiṣṭhaḥ - book-5, chapter-46, verse-10

एकस्तस्मात्समुत्तस्थौ जरावान्रक्तलोचनः ।
काचश्रृङ्गहिमापूर्णमिव श्वपचनायकः ॥ १० ॥

ekastasmātsamuttasthau jarāvānraktalocanaḥ ,
kācaśrṛṅgahimāpūrṇamiva śvapacanāyakaḥ 10

10. ekaḥ tasmāt samuttasthau jarāvān rakta-locanaḥ
kāca-śṛṅga-hima-āpūrṇam iva śvapaca-nāyakaḥ

10. tasmāt ekaḥ jarāvān rakta-locanaḥ śvapaca-nāyakaḥ
kāca-śṛṅga-hima-āpūrṇam iva samuttasthau

10. From that (group), one man, old and red-eyed, arose, resembling a chieftain of dog-eaters who appeared as if laden with shards of glass, horns, and snow.

Words meanings summery:

• एकः (ekaḥ) - one man (from the group) (one, a certain one)

• तस्मात् (tasmāt) - from that group or place mentioned previously (from that, thence)

• समुत्तस्थौ (samuttasthau) - arose, stood up

• जरावान् (jarāvān) - old, aged

• रक्त-लोचनः (rakta-locanaḥ) - red-eyed

• काच-शृङ्ग-हिम-आपूर्णम् (kāca-śṛṅga-hima-āpūrṇam) - covered with shards of glass, horns, and snow (describing a rough/wild appearance) (filled with glass, horns, and snow)

• इव (iva) - like, as if, as

• श्वपच-नायकः (śvapaca-nāyakaḥ) - chief of dog-eaters, leader of outcasts

Words meanings and morphology

एकः (ekaḥ) - one man (from the group) (one, a certain one)

(pronoun)

Nominative, masculine, singular of eka

eka - one, a single, unique, sole, chief

तस्मात् (tasmāt) - from that group or place mentioned previously (from that, thence)

(pronoun)

Ablative, masculine, singular of tad

tad - that, he, she, it

समुत्तस्थौ (samuttasthau) - arose, stood up

(verb)

3rd person , singular, active, perfect (lit) of sam-ud-sthā

Prefixes: sam+ud

Root: sthā (class 1)

जरावान् (jarāvān) - old, aged

(adjective)

Nominative, masculine, singular of jarāvat

jarāvat - possessing old age, aged, decrepit

रक्त-लोचनः (rakta-locanaḥ) - red-eyed

(adjective)

Nominative, masculine, singular of rakta-locana

rakta-locana - red-eyed

Compound type : bahuvrīhi (rakta+locana)

• rakta – red, dyed, colored, passionate
  adjective (neuter)
  Past Passive Participle
  Derived from root rañj (to color, dye)
  Root: rañj (class 1)
• locana – eye, seeing
  noun (neuter)
  From root loc (to see)
  Root: loc

काच-शृङ्ग-हिम-आपूर्णम् (kāca-śṛṅga-hima-āpūrṇam) - covered with shards of glass, horns, and snow (describing a rough/wild appearance) (filled with glass, horns, and snow)

(adjective)

Nominative, neuter, singular of kāca-śṛṅga-hima-āpūrṇa

kāca-śṛṅga-hima-āpūrṇa - filled with glass, horns, and snow

Compound type : tatpuruṣa (kāca+śṛṅga+hima+āpūrṇa)

• kāca – glass, crystal, a disease of the eye
  noun (masculine)
• śṛṅga – horn, peak, summit
  noun (neuter)
• hima – snow, ice, cold
  noun (neuter)
• āpūrṇa – filled, full, complete
  adjective (neuter)
  Past Passive Participle
  Derived from root pṝ (to fill) with prefix ā-
  Prefix: ā
  Root: pṝ (class 9)

Note: Used here as part of a simile, describing the appearance of the chief of outcasts.

इव (iva) - like, as if, as

(indeclinable)

श्वपच-नायकः (śvapaca-nāyakaḥ) - chief of dog-eaters, leader of outcasts

(noun)

Nominative, masculine, singular of śvapaca-nāyaka

śvapaca-nāyaka - leader of dog-eaters, chief of outcasts

Compound type : tatpuruṣa (śvapaca+nāyaka)

• śvapaca – dog-eater, an outcast, caṇḍāla
  noun (masculine)
• nāyaka – leader, chief, general, guide
  noun (masculine)
  From root nī (to lead)
  Root: nī (class 1)