Yes, ‘builded’ is a word, but its usage is quite rare in modern English. It is an archaic past tense form of the verb ‘build.’
In contemporary English, the standard past tense and past participle of ‘build’ is ‘built.’ However, ‘builded’ appears in some older texts and may be found in poetic or dialectal expressions.
For example, you might see it in works stemming from earlier centuries or in certain regional dialects. Today, using ‘built’ is generally preferred to communicate effectively and to ensure clarity in writing and speech.