<entry id="2218247" stat="A" corpus="jmdict" type="jmdict">
<ent_corp type="jmdict">jmdict</ent_corp>
<ent_seq>1172010</ent_seq>
<k_ele>
<keb>雨合羽</keb>
<ke_inf>&ateji;</ke_inf>
</k_ele>
<k_ele>
<keb>雨ガッパ</keb>
</k_ele>
<k_ele>
<keb>雨がっぱ</keb>
</k_ele>
<r_ele>
<reb>あまガッパ</reb>
</r_ele>
<sense>
<pos>&n;</pos>
<gloss>raincoat</gloss>
<gloss>oilcoat</gloss>
</sense>
<info>
<audit time="2012-11-21 22:05:32" stat="A" unap="true">
<upd_name>Francis</upd_name>
<upd_detl>Just adding the additional reading. It was in the text which I was reading. It gets a good number of Google hits.

You also have the following on the site:-

雨がっぱ 【あまがっぱ】 (?) ???; RH
合羽(ateji) 【カッパ(P); かっぱ】 (n) (See レインコート) raincoat (por: capa); kappa; pluvial; (P)
合羽 【がっぱ】 (?) ???; RH
合羽 【がっぱ】 (n) macintosh; mackintosh; mac; mack; JWN-03702719-n
合羽 【がっぱ】 (n) mackintosh; macintosh; JWN-03703590-n
合羽 【がっぱ】 (n) raincoat; waterproof; JWN-04049405-n</upd_detl>
<upd_diff>@@ -6,0 +6,3 @@
+&lt;/k_ele&gt;
+&lt;k_ele&gt;
+&lt;keb&gt;雨がっぱ&lt;/keb&gt;</upd_diff>
</audit>
<audit time="2012-11-21 22:15:54" stat="A">
<upd_uid>jwb</upd_uid>
<upd_name>Jim Breen</upd_name>
<upd_email>...address hidden...</upd_email>
</audit>
<audit time="2020-02-09 20:56:43" stat="A" unap="true">
<upd_name>Alan Cheng</upd_name>
<upd_email>...address hidden...</upd_email>
<upd_refs>雨合羽	36164
雨がっぱ	3322
雨ガッパ	7199</upd_refs>
<upd_diff>@@ -7,0 +8,3 @@
+&lt;keb&gt;雨ガッパ&lt;/keb&gt;
+&lt;/k_ele&gt;
+&lt;k_ele&gt;
@@ -11,0 +15,6 @@
+&lt;re_restr&gt;雨合羽&lt;/re_restr&gt;
+&lt;re_restr&gt;雨がっぱ&lt;/re_restr&gt;
+&lt;/r_ele&gt;
+&lt;r_ele&gt;
+&lt;reb&gt;あまガッパ&lt;/reb&gt;
+&lt;re_restr&gt;雨ガッパ&lt;/re_restr&gt;</upd_diff>
</audit>
<audit time="2020-02-10 01:05:22" stat="A">
<upd_uid>jwb</upd_uid>
<upd_name>Jim Breen</upd_name>
<upd_email>...address hidden...</upd_email>
</audit>
<audit time="2023-01-07 01:53:12" stat="A" unap="true">
<upd_name>Stephen Kraus</upd_name>
<upd_email>...address hidden...</upd_email>
<upd_refs>meikyo: 「合羽」は当て字。

Google N-gram Corpus Counts
╭─ーーーーー─┬────────┬───────╮
│ 雨合羽　　 │ 36,164 │ 75.5% │
│ 雨ガッパ　 │  7,199 │ 15.0% │
│ 雨がっぱ　 │  3,322 │  6.9% │
│ あまがっぱ │  1,055 │  2.2% │
│ あまガッパ │    146 │  0.3% │ - dropping
╰─ーーーーー─┴────────┴───────╯</upd_refs>
<upd_diff>@@ -5,0 +6 @@
+&lt;ke_inf&gt;&amp;ateji;&lt;/ke_inf&gt;
@@ -15,6 +15,0 @@
-&lt;re_restr&gt;雨合羽&lt;/re_restr&gt;
-&lt;re_restr&gt;雨がっぱ&lt;/re_restr&gt;
-&lt;/r_ele&gt;
-&lt;r_ele&gt;
-&lt;reb&gt;あまガッパ&lt;/reb&gt;
-&lt;re_restr&gt;雨ガッパ&lt;/re_restr&gt;</upd_diff>
</audit>
<audit time="2023-01-07 02:56:54" stat="A">
<upd_uid>Marcus</upd_uid>
<upd_name>Marcus Richert</upd_name>
<upd_email>...address hidden...</upd_email>
<upd_diff>@@ -15 +15 @@
-&lt;reb&gt;あまがっぱ&lt;/reb&gt;
+&lt;reb&gt;あまカッパ&lt;/reb&gt;</upd_diff>
</audit>
<audit time="2023-01-07 02:58:09" stat="A" unap="true">
<upd_name>Stephen Kraus</upd_name>
<upd_email>...address hidden...</upd_email>
<upd_detl>カ -&gt; ガ</upd_detl>
<upd_diff>@@ -15 +15 @@
-&lt;reb&gt;あまカッパ&lt;/reb&gt;
+&lt;reb&gt;あまガッパ&lt;/reb&gt;</upd_diff>
</audit>
<audit time="2023-01-07 03:54:40" stat="A">
<upd_uid>jwb</upd_uid>
<upd_name>Jim Breen</upd_name>
<upd_email>...address hidden...</upd_email>
</audit>
</info>
</entry>