taru-adjective, adverb taking the 'to' particle
terrified; horrified; trembling with fear
Formal or literary term describing a state of being deeply frightened, often with physical trembling. Used in written language or dramatic narration.
I was horrified by that sight.
I stood frozen, trembling with fear.
Standard kanji spelling for this literary term.
Search-only kanji form; not a standard written variant.
Compound of 慄 (ritsu, 'fear, trembling') and 然 (zen, a suffix forming adjectives/adverbs indicating state). The exact historical derivation is uncertain, but the word is used in classical and literary Japanese.