17.14 The least common type of contraction in verbs involves –ο, where the contractions are:
17.15 The Present Indicative Active of δηλόω, δηλώσω (cf. S 385).
Note that for όω verbs, ο + ει contracts to οι (!), and the ι of the present infinitive ending –ειν is dropped prior to contraction, a process seen above with άω verbs.
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