$word = join( '', array_slice( $chars[0], 0, -2 ) ) . 'тей';
} elseif ( join( '', array_slice( $chars[0], -2 ) ) === 'ды' ) {
$word = join( '', array_slice( $chars[0], 0, -2 ) ) . 'дов';
+ } elseif ( join( '', array_slice( $chars[0], -1 ) ) === 'д' ) {
+ $word = join( '', array_slice( $chars[0], 0, -1 ) ) . 'да';
} elseif ( join( '', array_slice( $chars[0], -3 ) ) === 'ник' ) {
$word = join( '', array_slice( $chars[0], 0, -3 ) ) . 'ника';
} elseif ( join( '', array_slice( $chars[0], -3 ) ) === 'ные' ) {
$word = join( '', array_slice( $chars[0], 0, -2 ) ) . 'тях';
} elseif ( join( '', array_slice( $chars[0], -2 ) ) === 'ды' ) {
$word = join( '', array_slice( $chars[0], 0, -2 ) ) . 'дах';
+ } elseif ( join( '', array_slice( $chars[0], -1 ) ) === 'д' ) {
+ $word = join( '', array_slice( $chars[0], 0, -1 ) ) . 'де';
} elseif ( join( '', array_slice( $chars[0], -3 ) ) === 'ник' ) {
$word = join( '', array_slice( $chars[0], 0, -3 ) ) . 'нике';
} elseif ( join( '', array_slice( $chars[0], -3 ) ) === 'ные' ) {