Does "jʿr.t (iaret)" mean "rearing cobra" as stated on Wikipedia?
The Uraeus (/jʊˈriːəs/; plural Uraei or Uraeuses; from the Greek οὐραῖος, ouraîos, "on its tail"; from Egyptian jʿr.t (iaret), "rearing cobra") is the stylized, upright form of an Egyptian cobra (asp, serpent, or snake), used as a symbol of sovereignty, royalty, deity and divine authority in ancient Egypt.
Or should it be understood as having the more generic meaning of "to ascend" as suggested by Wiktionary?
From jꜥr (“to ascend”) + -t.
Concerning -t Wiktionary gives many different uses.
Suffix. Used to form feminine singular forms of nouns and adjectives.
Suffix. Converts nouns and prepositions into feminine adjectives: the feminine nisba adjective ending.
Suffix. Forms adverbs from certain adjectives; -ly
Suffix. Forms the infinitive of anomalous verbs, weak verbs (except for fourth weak verbs with a geminated stem), and causative biliteral verbs.
Suffix. Forms the complementary infinitive of all verbs.
(Usage notes: Weak verbs can alternatively take the endings -wt or -yt to form the complementary infinitive.)
- Suffix. Forms the terminative of all verbs.
(Usage notes: Third-weak verbs can alternatively take the ending -yt to form the terminative, more frequently when passive than when active.
When this ending is attached to a verb ending in d or t, it is occasionally left unwritten.)
Please, in which way is -t being used in "jʿr.t (iaret)"? 1-6? And if it is being used "(1.) to form feminine singular forms of nouns and adjectives" then what would be used to form masculine singular forms of nouns and adjectives?