timeous
In sufficient time; timely; in (its) proper time or season.
We sincerely hope, however, that a timeous and speedy adoption of energetic and conciliatory measures will waft such a dreadful calamity far distant from our homes, and restore that confidence in society so necessary for the welfare of a commercial community.
Where it comes from
From earlier timous, from Middle English tymous, *tymwos, *tymwis (“early”), equivalent to timewise. Cognate with Scots timeous (“timely”). By surface analysis, time + -ous.
Adapted from the Wiktionary entry timeous (CC BY-SA 4.0).