Abarim Publications' online Biblical Hebrew Dictionary
The verb ארג ('arag) means to weave, and describes people weaving cloth (2 Kings 23:7) or spiders weaving webs (Isaiah 59:5). Mostly, the verb is used as a substantive meaning either weaver (Isaiah 38:12), or the work of a weaver; that what's weaved (Exodus 28:32). This verb's derivatives are:
- The masculine noun ארג ('ereg) meaning loom (Judges 16:14, Job 7:6 only).
- The masculine noun ארגמן ('argaman), meaning purple, or rather purple items (Exodus 25:4, Numbers 4:13, Esther 1:6). Although this noun neatly fits this root, it's probably imported from Sanskrit.