I searched every nook and cranny but still couldn't find it.
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history
旮 is not used independently in modern Chinese — it occurs only in the colloquial binome 旮旯 ('a nook / corner', often 旮旯儿 in Beijing speech), paired with 旯.
memory
旮 has the sun 日 under 九; its partner 旯 has 九 under 日 — a tidy mirror pair for the word 'nook'.