Past tense of 'heil' (a dialectal or archaic verb); though the form is uncertain in meaning without more context.
If from a Scots or dialectal 'heil,' this would follow standard past tense formation with the -ed suffix, though the base verb's meaning requires clarification.
Obscure verb forms like 'heiled' illustrate how English past tense formation creates thousands of potential words—most valid by grammatical rules but vanished from use because their base verbs became obsolete.
Complete word intelligence in one call. Free tier — 50 lookups/day.