[=a] signifies "a with macron"; [)a] "a with breve"; and so forth. [gh] represents yogh, [*e] the schwa. A carat character is used to denote superscription: a single character following the carat is superscripted (example: 4^o). Project Gutenberg has Volume VI of Skeat's edition, which contains a Glossary covering the two texts in this volume. See: https://www.gutenberg.org/ebooks/43097…
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