jmdict 1270350 Active (id#2343074)
御座る [rK] ； ご座る [sK] ； 厶る [sK]
【 ござる 】
  1. [v5r,vi] [pol,arch,uk]
    《usu. ございます in modern Japanese》
    • to be
    Cross references:
    • ⇔ see: 1612690 【ございます】 1. to be; to exist
    • ⇐ see: 2734360 おりゃる 4. to be
    • ⇐ see: 2082460 で御座る【でござる】 1. be; is
  2. [v5r,vi] [hon,arch,uk]
    • to come
    • to go
    • to be (somewhere)
  3. [aux-v,v5r] [hon,arch,uk]
    《after the ～て form of a verb》
    • to be (doing)
Conjugations
History:
    • A 2025-06-30 07:18:35 Jim Breen (id#2343074)
    • A* 2025-06-29 10:02:04 Sombrero1 (id#2343010)
    • Comments
      Not an abbreviation of ござある, simply derived from it. Just as ます from まする is, or される from せられる.
No reference supports [abbr]

I don't think the xref to ござある is needed anymore, this xref from an archaic to an even more archaic term is just a hint to a (rather obvious) etymology now.
An xref to ございます far more appropriate if the sense note persists.
    • Diff
      @@ -22 +22 @@
-<xref type="see" seq="2253100">御座在る・1</xref>
+<xref type="see" seq="1612690">ございます・1</xref>
@@ -25 +24,0 @@
-<misc>&abbr;</misc>
    • A* 2025-06-28 18:28:50 Sombrero1 (id#2342985)
    • Comments
      v4r is used for classical verbs lacking the secondary onbin form of the 未然形, as caused by the volitional/hortative auxiliary verb う (<む).
Whether the 連用形 is い or り doesn't change the amount of stems present. Also ございます has its own entry in most dictionaries as well as here.

ござらむ > ござらう > ござろう
    • Refs
      current
｛ら・ろ；い；る；る；れ；れ｝5
｛ら・ろ；り；る；る；れ；れ｝5

v4r
｛ら；り；る；る；れ；れ｝4


I don't see a reference without a 五段 tag, apart from refs like 角川古語大辞典 or weblio古語 obviously.
    • Diff
      @@ -21 +20,0 @@
-<pos>&v4r;</pos>
@@ -33 +31,0 @@
-<pos>&v4r;</pos>
@@ -45 +42,0 @@
-<pos>&v4r;</pos>
    • A* 2025-06-28 14:32:33 (id#2342983)
    • Comments
      It's being conjugated as a v4r verb quite often. 御座いました as opposed to 御座りました etc. So v4r should be included.
    • Diff
      @@ -20,0 +21 @@
+<pos>&v4r;</pos>
@@ -31,0 +33 @@
+<pos>&v4r;</pos>
@@ -42,0 +45 @@
+<pos>&v4r;</pos>
    • A 2024-12-31 02:02:28 Jim Breen (id#2329186)
    • Comments
      Odd utf-8 character.
    • Diff
      @@ -47 +47 @@
-<gloss>to be (doing)​</gloss>
+<gloss>to be (doing)</gloss>
  6. (show/hide 4 older history records)
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